In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact.76176-87-9, Thiomorpholine-1-oxide hydrochloride it is a common compound, a new synthetic route is introduced below., 76176-87-9
To a solution of 6-chloro-3-pyridazinecarboxaldehyde (1) (502 mg, 3.52 mmol, 1.0 eq) in 1 ,2-dichloroethane (4 ml_) was added NaOAc (722 mg, 8.80 mmol, 2.5 eq) followed by CH2CI2 (2 ml_) and thiomorpholine-1 -oxide hydrochloride (2) (1.37 g, 8.80 mmol, 2.5 eq). The mixture was stirred for 10 min before the addition of NaBH(OAc)3 (1.12 g, 5.28 mmol, 1.5 eq) then stirred for 4 h at room temperature. The reaction was quenched with 1 M NaOH (5 ml_) and the resulting mixture was poured into H20 (10 ml_) and extracted with CH2CI2 (10 ml_) then EtOAc (2 x 10 ml_). The combined organic extracts were dried over MgS04, filtered and concentrated in vacuo. Purification by silica gel chromatography using CH2CI2/MeOH (1 :0-19: 1 ) yielded intermediate 3 as an off- white solid (408 mg, 47%). (1335) LCMS (ES): Found 245.9 [M+Hf. (1336) 1H NMR (300MHz, DMSO-cf6), d: 7.91 (d, J=8.9 Hz, 1 H), 7.81 (d, J=8.9 Hz, 1 H), 3.89 (s, 2H), 2.82-3.04 (m, 4H), 2.59-2.79 (m, 4H).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 76176-87-9, and friends who are interested can also refer to it.
Reference£º
Patent; KARUS THERAPEUTICS LIMITED; SHUTTLEWORTH, Stephen Joseph; GATLAND, Alice Elizabeth; FINNEMORE, Daniel John; ALEXANDER, Rikki Peter; SILVA, Franck; CECIL, Alexander; (233 pag.)WO2019/166824; (2019); A1;,
Thiomorpholine – Wikipedia
Thiomorpholine | C4H9NS – PubChem