Day: April 6, 2022

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Diimidazoles. IV. Derivatives of 4,5-diaminoimidazole and their attempted cyclization》. Authors are Schubert, Hermann; Heydenhauss, Dieter.The article about the compound:1-Methyl-4-nitro-1H-imidazol-5-aminecas:4531-54-8,SMILESS:NC1=C([N+]([O-])=O)N=CN1C).Electric Literature of C4H6N4O2. Through the article, more information about this compound (cas:4531-54-8) is conveyed.

The preparation of a series of 1-methyl-4-nitro-5-alkylaminoimidazoles (I) is described. The catalytic hydrogenation of I and of 1-methyl-4-nitro-5-aminoimidazole (Ia) (R = H) (II) yielded unstable diamines which could neither be isolated nor cyclized. Acetylation of II gave the di-Ac derivative (III) of II. I were formylated and acetylated smoothly; hydrogenation of the products yielded stable acyl derivatives of 4,5-diaminoimidazole. (CONHMe)2 with PCl5 gave 40.8% 5-chloro-1-methylimidazole (IV), b15 90°. IV (103 g.), 100 cc. concentrated HNO3, and 400 cc. H2O evaporated, the residue added in portions at 10° to 3 times its weight of concentrated H2SO4, and the mixture heated 2 hrs. on a water bath yielded 122 g. 5-Cl analog (V) of II, m. 149-50°. V (13.2g.)in 3.5%absolute NH3EtOH heated 2 hrs. at 130-40° in a sealed tube yielded 6.3 g. II, m. 303° (decomposition) (H2O). II (5 g.) and 200 cc. Ac2O refluxed about 5 hrs. gave 5.2 g. III, m. 149.5-50.5°. V (1.62 g.) in 25 cc. 7% absolute alc. MeNH2 refluxed 3 hrs. yielded 1.45 g. Ia (R = Me) (VI), m. 156-7° (EtOH). VI (5 g.) in 50 cc. HCO2Ac kept 20 hrs. at room temperature and concentrated yielded 5 g. the N-CHO derivative (VII), m. 142.5-3.5° (EtOH). VI (10 g.) in 200 cc. Ac2O heated 1 hr. at 90-100° gave 8.2 g. the N-Ac derivative (VIII), m. 168-9° (BuOH or dioxane). V (1.62 g.) in 37 cc. 7% absolute alc. EtNH2 refluxed 3 hrs. and refrigerated overnight yielded 1.6 g. Ia (R = Et), m. 161-2° (dioxane). In the same manner were prepared the following Ia (R, m.p., and % yield given): Pr, 114-18° (dioxan-epetr. ether), 92; Bu, 101-6° (dioxane-petr. ether), 61; PhCH2, 132-3° (EtOH), 90. Also prepared was the N-Me derivative of VI, m. 94-5.5° (C6H6-petr. ether), 47% yield. II (0.76 g.) in 30 cc. 85% HCO2H hydrogenated 4 hrs. at 17°/756 mm. over 0.2 g. PtO2 yielded a black-brown oil, which treated with dilute aqueous NaOH liberated NH3. III (0.5 g.) in 45 cc. absolute BuOH hydrogenated 40 min. at 17°/770 mm. over 0.2 g. PtO2, and the resulting oily product in C6H6 treated with the stoichiometric amount picric acid yielded 1-methyl-4-amino-5-(N,N-diacetylamino)imidazole picrate, m. 160-1° (decomposition) (BuOH). The BuOH solution from a duplicate run refluxed 1.5 hrs. under argon gave only a brown, flocculent precipitate Hydrogenation of 0.5 g. VI in H2O, dilute HCl, dry dioxane, AcOH, AcOH-HCl, and Ac2O over 0.2 g. PtO2 gave only oily unstable materials. VII (0.6 g.) in 100 cc. Bu0H hydrogenated 50 min. at 18°/763 mm., and the resulting yellow oil treated in EtOH with picric acid gave the picrate of 1-methyl-4-amino-5-(N-methyl-N-formylamino)imidazole (IX), m. 173-70 (decomposition) (H2O); styphnate m. 177-8.5° (decomposition) (H2O). The BuOH solution of the crude IX refluxed 2 hrs. under argon yielded a brown, flocculent precipitate VIII (2 g.) in 120 cc. BuOH hydrogenated 1 hr. at 20°/755 mm. over 0.4 g. PtO2 yielded 1.4 g. 5-AcMeN analog (X) of IX, m. 165-6° ( PhCl); picrate m. 217-21° (decomposition) (H2O); styphnate m. 196-9° (decomposition) (H2O); HCl salt m. 225-6° (decomposition). All attempted cyclizations of X were unsuccessful. X (0.5 g.) in 3 cc. absolute HCO2H refluxed 1.5 hrs. yielded 0.4 g. 1-methyl-4-formyl-amino-5-(N-methyl-N-acetylamino)imidazole (XI), m. 154-5.5° (absolute EtOH-Et2O). X (2.1 g.) in 15 cc. AcOH refluxed 0.5 hr. yielded 1.47 g. 4-AcNH analog of XI, m. 188.5-9.5° (1:1 dioxane-PhCl); picrate m. 166-9° (EtOH); all attempted cyclizations were unsuccessful.

Compound(4531-54-8)Electric Literature of C4H6N4O2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Methyl-4-nitro-1H-imidazol-5-amine), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, MMWR. Morbidity and mortality weekly report called Vital signs: trends in use of long-acting reversible contraception among teens aged 15-19 years seeking contraceptive services—United States, 2005-2013., Author is Romero, Lisa; Pazol, Karen; Warner, Lee; Gavin, Lorrie; Moskosky, Susan; Besera, Ghenet; Loyola Briceno, Ana Carolina; Jatlaoui, Tara; Barfield, Wanda; Centers for Disease Control and Prevention (CDC), which mentions a compound: 616-14-8, SMILESS is CCC(CI)C, Molecular C5H11I, Safety of 1-Iodo-2-methylbutane.

BACKGROUND: Nationally, the use of long-acting reversible contraception (LARC), specifically intrauterine devices (IUDs) and implants, by teens remains low, despite their effectiveness, safety, and ease of use. METHODS: To examine patterns in use of LARC among females aged 15-19 years seeking contraceptive services, CDC and the U.S. Department of Health and Human Services’ Office of Population Affairs analyzed 2005-2013 data from the Title X National Family Planning Program. Title X serves approximately 1 million teens each year and provides family planning and related preventive health services for low-income persons. RESULTS: Use of LARC among teens seeking contraceptive services at Title X service sites increased from 0.4% in 2005 to 7.1% in 2013 (p-value for trend <0.001). Of the 616,148 female teens seeking contraceptive services in 2013, 17,349 (2.8%) used IUDs, and 26,347 (4.3%) used implants. Use of LARC was higher among teens aged 18-19 years (7.6%) versus 15-17 years (6.5%) (p<0.001). The percentage of teens aged 15-19 years who used LARC varied widely by state, from 0.7% (Mississippi) to 25.8% (Colorado). CONCLUSIONS: Although use of LARC by teens remains low nationwide, efforts to improve access to LARC among teens seeking contraception at Title X service sites have increased use of these methods. IMPLICATIONS FOR PUBLIC HEALTH PRACTICE: Health centers that provide quality contraceptive services can facilitate use of LARC among teens seeking contraception. Strategies to address provider barriers to offering LARC include: 1) educating providers that LARC is safe for teens; 2) training providers on LARC insertion and a client-centered counseling approach that includes discussing the most effective contraceptive methods first; and 3) providing contraception at reduced or no cost to the client. Compound(616-14-8)Safety of 1-Iodo-2-methylbutane received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Metal-free C(sp3)-H functionalization of sulfonamides via strain-release rearrangement, published in 2021, which mentions a compound: 616-14-8, mainly applied to unsaturated imine preparation diastereoselective chemoselective DFT; fluorotosylamide tosylbenzaldimine carbon hydrogen functionalization strain release rearrangement, Reference of 1-Iodo-2-methylbutane.

A metal-free reaction system that enables C-H bond functionalization of aliphatic sulfonamides R(CH2)2N(F)Ts (R = decyl, cyclohexyl, oxan-4-yl, benzyl, etc.) using DABCO as a promoter under mild conditions, affording a series of α,β-unsaturated imines R1CH=C(R)CH=NTs (R1 = Ph, 4-chlorophenyl, 2,3-dihydro-1-benzofuran-5-yl, etc.) in good yields with high selectivities was presented. This protocol tolerates a broad range of functionalities and can serve as a powerful synthetic tool for the late-stage modification of complex compounds More importantly, control experiments and detailed DFT calculations suggest that this process involves [2 + 2] cyclization/ring-cleavage reorganization, which opens up a new platform for the establishment of other related reorganization reactions.

Compound(616-14-8)Reference of 1-Iodo-2-methylbutane received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Vital signs: trends in use of long-acting reversible contraception among teens aged 15-19 years seeking contraceptive services—United States, 2005-2013.》. Authors are Romero, Lisa; Pazol, Karen; Warner, Lee; Gavin, Lorrie; Moskosky, Susan; Besera, Ghenet; Loyola Briceno, Ana Carolina; Jatlaoui, Tara; Barfield, Wanda; Centers for Disease Control and Prevention (CDC).The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Quality Control of 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

BACKGROUND: Nationally, the use of long-acting reversible contraception (LARC), specifically intrauterine devices (IUDs) and implants, by teens remains low, despite their effectiveness, safety, and ease of use. METHODS: To examine patterns in use of LARC among females aged 15-19 years seeking contraceptive services, CDC and the U.S. Department of Health and Human Services’ Office of Population Affairs analyzed 2005-2013 data from the Title X National Family Planning Program. Title X serves approximately 1 million teens each year and provides family planning and related preventive health services for low-income persons. RESULTS: Use of LARC among teens seeking contraceptive services at Title X service sites increased from 0.4% in 2005 to 7.1% in 2013 (p-value for trend <0.001). Of the 616,148 female teens seeking contraceptive services in 2013, 17,349 (2.8%) used IUDs, and 26,347 (4.3%) used implants. Use of LARC was higher among teens aged 18-19 years (7.6%) versus 15-17 years (6.5%) (p<0.001). The percentage of teens aged 15-19 years who used LARC varied widely by state, from 0.7% (Mississippi) to 25.8% (Colorado). CONCLUSIONS: Although use of LARC by teens remains low nationwide, efforts to improve access to LARC among teens seeking contraception at Title X service sites have increased use of these methods. IMPLICATIONS FOR PUBLIC HEALTH PRACTICE: Health centers that provide quality contraceptive services can facilitate use of LARC among teens seeking contraception. Strategies to address provider barriers to offering LARC include: 1) educating providers that LARC is safe for teens; 2) training providers on LARC insertion and a client-centered counseling approach that includes discussing the most effective contraceptive methods first; and 3) providing contraception at reduced or no cost to the client. Compound(616-14-8)Quality Control of 1-Iodo-2-methylbutane received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Yang, Xiu-qun; Liao, Bin; Yan, Xue-fen; Yang, Ya published an article about the compound: 1-Iodo-2-methylbutane( cas:616-14-8,SMILESS:CCC(CI)C ).Electric Literature of C5H11I. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:616-14-8) through the article.

This thesis developed an SPME-GC-MS method for the aroma components in Ficus tikoua Bur. fruit. At the same time, the solid-phase micro extraction conditions were optimized: extraction temperature was 50°C, the extraction time was 40 min, added 8 g of sodium chloride electrolyte solid extraction Frozen Ficus tikoua Bur. fruit was detected out of 152 kinds of volatile substances, substances detected in 99.03%of the total. The main aroma components were esters, accounting for 33.06%; alcs., accounting for 13.14%; alkanes, accounting for 13.18%; there ketones, aldehydes, acids and other substances. Higher levels of 10 kinds of aroma components were guaiacol (14.71%), cyclobutane carboxylic acid dodecyl ester (13.54%), n-tridecane (6.05%), 2-tridecanone (4.72%), cyclohexasiloxane (4.44%), cyclobutane carboxylic acid decyl ester (4.18%), Me nonyl ketone (3.62%), acetic acid (2.98%), cyclopentanecarboxylic acid thirteen ester (2.48%), 2-tetradecanol (2.31%) and so on.

Compound(616-14-8)Electric Literature of C5H11I received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Application of 616-14-8. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about An extension of the linear relationship between molecular rotation and bond refraction.

For the empirical equations [M]D = mΣ RD + I; [M]D is the mol. rotation, ΣRD is the sum of bond refractions, and m and I are constants for a given series of compounds, a different treatment of the term ΣRD extends the usefulness of the equation to all types of substituents, not just monovalent and linear substituents.

Compound(616-14-8)Application of 616-14-8 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Cerebrospinal fluid lymphocytes in experimental allergic encephalomyelitis.》. Authors are Wilkerson, L D; Lisak, R P; Zweiman, B.The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Name: 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

We report characteristics of the cerebrospinal fluid (CSF) pleocytosis (616+/-148 cells/microliter) that occurred in guinea-pigs with definite clinical experimental allergic encephalomyelitis developing 12 to 16 days after sensitization with homologous myelin basic protein. This pleocytosis was not present in the cerebrospinal fluid of a group of animals studied when still healthy, 9 or 10 days after similar sensitization. Eighty-nine per cent of cells in the CSF pleocytosis were small lymphocytes, 8% were larger lymphocytes and the remainder mostly monocytes. Of the lymphocytes, most were E-rosetting or null cells. B-cell markers were uncommon. The cellular patterns in this CSF pleocytosis appear to be similar to those seen in some delayed hypersensitivity responses.

Compound(616-14-8)Name: 1-Iodo-2-methylbutane received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Safety of 1-Iodo-2-methylbutane. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Radical Yields in the Radiolysis of Branched Hydrocarbons: Tertiary C-H Bond Rupture in 2,3-Dimethylbutane, 2,4-Dimethylpentane, and 3-Ethylpentane. Author is Schuler, Robert H.; Wojnarovits, Laszlo.

Gel permeation chromatog. has been applied to iodine scavenging studies of the distribution of radicals produced in the radiolysis of sym. branched hydrocarbons 2,3-dimethylbutane, 2,4-dimethylpentane, and 3-ethylpentane. The principal iodides observed are those expected as a result of simple bond rupture. In the case of 2,3-dimethylbutane all five expected iodides are readily resolvable and it is shown that the loss of H from a tertiary position is favored over loss from a primary position by a factor of ∼10. A similar ratio is also observed for 2,4-dimethylpentane. The higher ratio of 15 observed for 3-ethylpentane indicates a dependence on the number of tertiary sites on the alkane. The relative yield of ∼3.3 for the loss of secondary and primary H atoms from 2,4-dimethylpentane and 3-ethylpentane is similar to that for normal alkanes, indicating a negligible effect of the adjacent tertiary carbon. In all three cases the rupture of terminal C-C bonds is relatively infrequent with C-C rupture occurring preferentially at the bonds adjacent to the tertiary carbon.

Compound(616-14-8)Safety of 1-Iodo-2-methylbutane received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1-Iodo-2-methylbutane), if you are interested, you can check out my other related articles.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Optical rotations of configurationally related azides》. Authors are Levene, P. A.; Rothen, Alexandre; Kuna, Martin.The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Recommanded Product: 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

Substances of the type MeCH[(CH2)n1X][(CH2)n2R], where n1 or n2 = 0 or an integer, X = a functional group and R = a normal alkyl, Ph or C6Hn group, can be classified into 2 categories, viz., those, typified by X = CHO, in which the configuration of the 1st members having n1 = 0 can be correlated by classical methods to those having n1 > 0, and those, typified by X = halogen, in which such correlation cannot be accomplished by classical methods. For the purpose of solving the latter problem the azides were chosen over the halides, inasmuch as they can be converted into the corresponding amines. The amines, while belonging to the 2nd category, can be correlated among themselves by a sufficiently reliable though nonclassical argument which will be reported later. The secondary azides were prepared by the action of NaN3 on the iodides and the amines by reduction of the azides with PtO2. The rotatory phenomena observed in the series of azides and halides were compared with those in the series of aldehydes and were found to be dissimilar in both series. Hence a comparison of these phenomena cannot be used for the correlation of the members of the series of halides and azides having n1 = 0 with those having n1 > 0. The following compounds were prepared: l-2-iodobutane, b. 111-18°, [M]D25 -24.1°, from the alc. and anhydrous HI in a bomb tube at room temperature for 2 days; d-2-azidobutane, b500 85°, d425 0.8619, nD25 1.4122, [M]D25 15.9°; d-2-aminobutane, [M]D25, 0.66° (in H2O), (HCl salt, [M]5875.625 -0.44° (in H2O)); l-2-iodoöctane, b1 52°, nD25 1.4863, d425 1.3158, [M]D25 -80.0°; d-2-azidoöctane, b9 68°, nD25 1.4332, d425 0.8555, [M]D25 43.4°, 42.5° (in heptane (I)); d-2-aminoöctane, b9 48°, nD25 1.4220, [M]D25 5.41°, (HCl salt, [M]D25 -6.44° (in H2O)); d-1-iodo-2-methylbutane, b. 145-6°, nD25 1.4950, [M]D25 8.28°, maximum [M]D25 11.1°; d-1-azido-2-methylbutane, b138 72°, nD25 1.4240, d425 0.8770, [M]D25 8.61°, maximum [M]D25 11.6°; l-1-amino-2-methylbutane, b12 40-5°, [M]5875.625 -0.21° (in H2O); l-1-azido-2-methylhexane, b15 59-60°, [α]D25 -0.30°; d-1-iodo-2-methylnonane, b4 86°, d425 1.254, [M]D25 2.54°; l-1-azido-2-methylnonane, b10 98-102°, d425 0.8658, nD25 1.4430, [M]D25 -0.74°; l-1-iodo-3-methylpentane, b12 54°, d425 1.3934, nD25 1.4866, [M]D25 -16.1°, maximum [M]D25 -43.9°; l-1-azido-3-methylpentane, b. 145-8°, nD25 1.4300, [M]D25 -9.63°, maximum [M]5875.625 -26.3° (in I); d-1-iodo-4-methylhexane, b13 74-5°, b103 124-6°, nD25 1.4852, d425 1.3579, [M]D25 8.20°, maximum [M]D25 26.2°; d-1-azido-4-methylhexane, b418 157°, d425 0.8636, nD25 1.4323, [M]5875.625 5.41°, maximum [M]5875.625 17.3° (in I.). All values for [M] are for the homogenous substance unless otherwise stated.

From this literature《Optical rotations of configurationally related azides》,we know some information about this compound(616-14-8)Recommanded Product: 1-Iodo-2-methylbutane, but this is not all information, there are many literatures related to this compound(616-14-8).

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Brusac, Edvin; Jelicic, Mario-Livio; Amidzic Klaric, Daniela; Nigovic, Biljana; Keser, Sabina; Mornar, Ana researched the compound: 1-Methyl-4-nitro-1H-imidazol-5-amine( cas:4531-54-8 ).Recommanded Product: 1-Methyl-4-nitro-1H-imidazol-5-amine.They published the article 《Development of a HPLC-DAD stability-indicating method and compatibility study of azathioprine and folic acid as a prerequisite for a monolayer fixed-dose combination》 about this compound( cas:4531-54-8 ) in Analytical Methods. Keywords: HPLC stability compatibility azathioprine folic acid monolayer dose combination. We’ll tell you more about this compound (cas:4531-54-8).

Adherence in chronic diseases is a major problem which can be combated by prescribing fixed-dose combinations in the therapy of the disease. Thus, a combination of azathioprine and folic acid in the treatment of inflammatory bowel disease is highly required, but prior to formulation development, chem. compatibility of the two drugs needs to be investigated. In this work, differential scanning calorimetry, isothermal stress testing, in vitro dissolution and forced degradation studies were utilized to investigate compatibility. Moreover, a stability-indicating HPLC-DAD method for the determination of parent drugs and five of their impurities was developed, validated and applied to the inhouse sample. Compatibility testing revealed no noteworthy interactions of the two drug substances. Furthermore, forced degradation showed no substantial differences between the degradation profiles of each active pharmaceutical ingredient, their mixture and the inhouse sample, further reinforcing the claim of compatibility. Lastly, the inhouse sample was analyzed: it was shown to conform to the requirements of relevant regulatory documents for all the investigated analytes, demonstrating the method’s viability for use in formulation and process development. Our results give way to the possibility of realization of said fixed-dose combination.

From this literature《Development of a HPLC-DAD stability-indicating method and compatibility study of azathioprine and folic acid as a prerequisite for a monolayer fixed-dose combination》,we know some information about this compound(4531-54-8)Recommanded Product: 1-Methyl-4-nitro-1H-imidazol-5-amine, but this is not all information, there are many literatures related to this compound(4531-54-8).

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem