Day: April 7, 2022

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 616-14-8, is researched, Molecular C5H11I, about Preparation of (S)-2-methylbutyl and (S)-sec-butyl ketones from optically active 2-methyl-1-butanol by the dithiane method, the main research direction is ketone; aldehyde; dithianes.Recommanded Product: 1-Iodo-2-methylbutane.

Optically active aldehydes and ketones EtMeCHCRO (where R = H, Me, Ph, Me3Si, C5H11, or 1-cyclohexenyl) were prepared by treating EtMeCHCHO, obtained from EtMeCHCH2OH, with CH2(CH2SH)2 to give 2-(1-methylpropyl)-1,3-dithiane, which was then alkylated and hydrolyzed. The loss of optical activity was <20% for the reaction sequence. There are many compounds similar to this compound(616-14-8)Recommanded Product: 1-Iodo-2-methylbutane. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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 rotation and atomic dimension for the four optically active 1-halo-2-methylbutanes》. Authors are Brauns, Dirk H..The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).SDS of cas: 616-14-8. Through the article, more information about this compound (cas:616-14-8) is conveyed.

cf. C. A. 25, 2977. Detailed directions are given for the preparation of pure 2-methyl-1-butanol (I) and its F, Cl, Br and I derivatives. The following properties are described: I b. 128°, b50 65.7°, d420 0.8193, nD20 1.4107, sp. rotation for λ 5892.5 A. -5.756, for 5461 A. -6.835, for 5850 A. -5.78. The last 3 values were taken at about 20°. The corresponding values for the derivatives are: for 1-fluoro-2-methylbutane 55.9°, -, 0.7906, 1.3576, -8.865, -10.477, -8.87; for 1-chloro-2-methylbutane 100.45°, 27.7°, 0.8857, 1.4124, +1.644, +1.847, +1.68; for 1-bromo-2-methylbutane 121.6°, 45.0°, 1.2234, 1.4451, +4.043, +4.707, +4.09; and for 1-iodo-2-methylbutane -, 66.5°, 1.5253, 1.4977, +5.685, +6.626, +5.71. The differences in mol. rotation (Cl-F), (Br-Cl) and (I-Br) have the ratio 41:18:21.6, which agrees with the ratio of the differences of the radii of the respective neutral atoms.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Category: thiomorpholine. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about SPME-GC-MS analysis of volatile components in fruits of the frozen Ficus tikoua Bur.. Author is Yang, Xiu-qun; Liao, Bin; Yan, Xue-fen; Yang, Ya.

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.

There are many compounds similar to this compound(616-14-8)Category: thiomorpholine. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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 《Characteristic group frequencies of bromo- and iodoalkanes in the cesium bromide region》. Authors are Bentley, F. F.; McDevitt, N. T.; Rozek, Adele L..The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Application In Synthesis of 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

The infrared spectra of 74 normal and branched bromo- and iodoalkanes were recorded and studied, 667-286 cm.-1 The number and position of the frequencies characteristic of the C–X stretching vibration are dependent on the rotational isomers present as well as the structure of the alkyl substituents in the vicinity of the C–X group. Conformational structures and representative spectra are presented along with correlation charts which list the C–X stretching vibration for various primary, secondary, and tertiary bromo- and iodoalkanes.

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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).HPLC of Formula: 616-14-8. 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. There are many compounds similar to this compound(616-14-8)HPLC of Formula: 616-14-8. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-Methyl-4-nitro-1H-imidazol-5-amine, is researched, Molecular C4H6N4O2, CAS is 4531-54-8, about Solvatochromism of Heteroaromatic Compounds: XIV. 5-Amino-1-methyl-4-nitropyrazole and Its Analogs, the main research direction is solvatochromism heteroaromatic aminomethylnitropyrazole.Synthetic Route of C4H6N4O2.

The solvatochromism of H complexes of 5-amino-1-methyl-4-nitropyrazole and 2-nitroaniline derivatives in aprotic protophilic media was described on a quant. level with the aid of Kamlet-Taft empirical parameters. Specific solvation affects only one of the two long-wave bands, that corresponding to an electronic transition involving orbital electron d. transfer from the H-bound N atom. When such transfer does not occur, which is typical of the second transition, specific solvatochromic effect is either weak or absent.

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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, Journal of the Chemical Society called Interaction of hydroxy compounds and phosphorus and thionyl halides in the absence and in the presence of tertiary bases. VI, Author is Berlak, Marianne C.; Gerrard, Wm., which mentions a compound: 616-14-8, SMILESS is CCC(CI)C, Molecular C5H11I, Name: 1-Iodo-2-methylbutane.

cf. C.A. 41, 93d. The following yields (in %) of alkyl iodide were obtained from the resp. alc. and 0.33 mol. PI3 in CS2 at 15-20° in 24 h. (other exptl. conditions indicated): PrOH 40; iso-PrOH 20 (72 h. 21; 1 mol. 18); BuOH 43 (72 h. 61, 2.5 h. at b.p. 48; 1 mol. for 24 or 72 h. 56); sec-BuOH 60 (72 h. 58; 1 mol. 61); tert-BuOH 20 (also 72 h.; 1 mol. 17); sec-BuCH2OH 48 (68 h. 44, 1 mol. 45); Pr2CHOH 74 (1 mol. 80); C8H17OH 42 (1 mol. 56); C6H13CH(Me)OH (I) 36 (0.66 mol. for 24 or 72 h. 66, 1 mol. 75). (+)-I (6.5 g.) and 3.95 g. C5H5N in 50 cc. CS2 at -10°, treated with 6.9 g. PI3, give 9.3 g. C5H5N.HI; further addition of 13.8 g. PI3 gives 7.78 g. C6H13CHIMe, αD18 -56.8% BuOH and C8H17OH show a similar behavior. (-)-Dimethylhexylcarbinyl H phosphite (4.6 g., αD22 -12.6°) at -10°, treated (1 h.) with HI and kept 18 h. at 15° gives 5.93 g. (+)-C6H13CHIMe, αD20 45.8°. (BuO)2PHO (6.5 g.), treated 50 min. at -10° with HI and kept 30 min. at -10°, gives 2.65 g. BuI; if the reaction is carried out without cooling (temperature rise from 19 to 23°), there results 5.3 g. BuI. (RO)2HPO react much more readily with HI than with HCl or HBr. The mechanism of the reaction is discussed.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Quality Control of 1-Methyl-4-nitro-1H-imidazol-5-amine. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-Methyl-4-nitro-1H-imidazol-5-amine, is researched, Molecular C4H6N4O2, CAS is 4531-54-8, about A catalyst and additive-free three-component reaction of highly electrophilic azides with cyclic ketones and cycloaliphatic amines. Synthesis of novel N-heteroaryl amidines. Author is Efimov, Ilya; Beliaev, Nikolai; Beryozkina, Tetyana; Slepukhin, Pavel; Bakulev, Vasiliy.

Highly electrophilic 5-azido-1-methyl-4-nitro-1H-imidazole and sulfonyl azides were demonstrated to react with alicyclic amines and cyclic ketones in the absence of any catalyst or additive to afford novel N-(4-nitroimidazol-5-yl)- or N-sulfonylamidines resp. Based on single crystal X-ray anal., a revision of the previously reported data of Gao and co-workers on the direction of the reaction of sulfonyl azides with endocyclic enamines was made. The reaction of 2,6-diazidopyridine with an enamine, 4-(cyclohex-1-en-1-yl)morpholine, proceeded with cyclization of the azide moiety onto the pyridine C=N bond to form an amidine bearing the tetrazolo[1,5-a]pyridine fragment.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Gas chromatography of isomeric pentyl halides.Formula: C5H11I.

Isomeric pentyl halides were separated by gas chromatog. Two columns were used: a 4 m. × 1/16-in. outer diameter stainless steel column packed with 10% squalane on 80-100-mesh Chromosorb W, N as the carrier at 13-15 ml./min. (column 1), and a 4-m. × 1/8-in. outer diameter stainless steel column packed with 11.5% Bentone 34 + 11.5% silicone MS 555 on 80-100-mesh Chromosorb W, N as the carrier at 25-30 ml./min. (column 2). On column 1, chlorides were analyzed at 20°, bromides and iodides at 40°; on column 2, all analyses were at 40°. A flame ionization detector was used with both columns. tert-Pentyl bromide and iodide decomposed in column 2 although not on column 1. The 3-halogenopentanes were the only isomers that could not be completely separated from all other pentyl structures.

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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 《Formation of 4(5)-aminoglyoxalines. I》. Authors are Balaban, Isidore E..The article about the compound:1-Methyl-4-nitro-1H-imidazol-5-aminecas:4531-54-8,SMILESS:NC1=C([N+]([O-])=O)N=CN1C).HPLC of Formula: 4531-54-8. Through the article, more information about this compound (cas:4531-54-8) is conveyed.

The only evidence at present that 4(5)-aminoglyoxalines are true aromatic amines is the formation, after diazotization, of colored soln with aqueous β-C10H7ONa. Reduction of 4(5)-nitro-2-methyl- and 4(5)-nitroglyoxalines with Fe and H2O, FeSO4 and NaOH, Na2S or activated Al gave no basic material. Et glyoxaline-4(5)-carboxylate and N2H4.H2O, heated on the H2O bath for 30 min., give nearly quant. glyoxaline-4(5)-carboxyhydrazide, crystallizing with 1H2O, m. 213°, reduces NH4OH-AgNO3 slowly but not Fehling solution; picrate, yellow, m. 223° (decomposition), crystallizes from 85 parts boiling H2O. With HNO3 there results glyoxaline-4(5)-carboxyazide (I), decomposes explosively at 137°; heating with H2O does not give the urea; the green solution gives an amorphous picrate, chars 230°. Boiling I with absolute EtOH for 4 hrs. gives 42.2% of 4(5)-carbethoxyaminoglyoxaline, m. 180°; picrate, golden, decomposes 210°, crystallizes from 60 parts boiling H2O; nitrate (II), decomposes 143°. I and MeOH give 50% of the corresponding carbomethoxy derivative, m. 175°; picrate, decomposes 243°. Neither derivative could be hydrolyzed by acid or alkali. II and concentrated H2SO4 give 58% of 5(4)-nitro-4(5)-carbethoxyaminoglyoxaline, m. 234° (decomposition); this could not be converted by 10% Na2CO3 into the corresponding amine. 5-Chloro-4-nitro-1-methylglyoxaline and EtOH-NH3, heated 4 hrs. at 140°, give 63.7% of the 5-NH2 derivative, yellow, m. 303° (decomposition), crystallizes from 170 parts boiling H2O; it does not form an Ac derivative, a benzylidene derivative or a picrate; after treatment with HNO2, alk. C10H7ONa gives a greenish blue color and alk. m-C6H4(OH)2 a violet color. With 16% HCl, HNO2 is liberated and α-methylamino-α-hydroxyacetamide, pale brown, m. 140°, is formed.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem