2-(三氟甲基)-1,2-二氢-4 H-噻吩并[2,3 - c ] chromen-4-ones的合成和2-(三氟甲基)-4 H-噻吩并[2,3- c ] chromen-来自2-三氟甲基色酮和巯基乙酸乙酯的4-酮
摘要:
在三乙胺的存在下,2-三氟甲基色酮与巯基乙酸乙酯的氧化还原反应可高产率地形成1,2-二氢噻吩并[2,3 - c ]铬-4-酮和3,4-二硫代二乙酯二乙酯。用二氧化氮氧化第一化合物,得到1,2-二氢噻吩并[2,3- c ] chromen-3,4-二酮,将其转化为噻吩并[2,3 - c ] chromen-4-ones。
Unexpected synthesis of dihydrothienocoumarin derivatives from 2-trifluoromethylchromones and ethyl mercaptoacetate
作者:Vyacheslav Ya Sosnovskikh、Boris I Usachev、Dmitri V Sevenard、Enno Lork、Gerd-Volker Röschenthaler
DOI:10.1016/s0040-4039(01)00946-7
日期:2001.7
The redox reaction of 2-trifluoromethylchromones with ethyl mercaptoacetate in the presence of triethylamine results in the formation of dihydrothienocoumarin derivatives and diethyl 3.4-dithiadipate in high yields. (C) 2001 Elsevier Science Ltd. All rights reserved.