Related Products of 159981-19-8, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.159981-19-8, name is 6-(2,2,2-Trifluoroethoxy)nicotinaldehyde, molecular formula is C8H6F3NO2, molecular weight is 205.13, as common compound, the synthetic route is as follows.
Resin-bound tetra-alkylcyanoborohydride (9.03 g, 21.2 mmol) was added to a preformed mixture of 7-(benzylthio)-1,2,3,4-tetrahydroisoquinoline (4 g, 14.1 mmol), 6-(2,2,2-trifluoroethoxy)nicotinaldehyde (3.18 g, 15.5 mmol), and glacial acetic acid (3.23 ml, 56.4 mmol) in MeOH (35 ml). The reaction vessel was fitted with a reflux condensor and heated to 40 C. overnight. The reaction mixture was cooled to room temperature, filtered through a fritted funnel, then neutralized by the addition of saturated aqueous NaHCO3 solution. The layers were cut and the aqueous phase extracted with EtOAc¡Á3. The combined organic layers were dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by medium pressure liquid chromatography ?MPLC? (KP-Sil 100 g SNAP column, BIOTAGE system) eluting with 1% MeOH/DCM over 3 CV followed by a gradient of 6-9% MeOH/DCM over 8 CV to give the desired compound. LC/MS (m/z): 445 (M+H)+
The chemical industry reduces the impact on the environment during synthesis 159981-19-8, I believe this compound will play a more active role in future production and life.
Reference:
Patent; Merck Sharp & Dohme Corp.; Berger, Richard; Blizzard, Timothy A.; Campbell, Brian T.; Chen, Helen Y.; Debenham, John S.; Dewnani, Sunita V.; Dubois, Byron; Gude, Candido; Guo, Zack Zhiqiang; Harper, Bart; Hu, Zhiyong; Lin, Songnian; Liu, Ping; Wang, Ming; Ujjainwalla, Feroze; Xu, Jiayi; Xu, Libo; Zhang, Rui; (64 pag.)US2018/9796; (2018); A1;,
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