Reactions of sulfur ylides with α,β-unsaturated thioamides: Synthesis of dihydrothiophenes and cyclopropanes
作者:A. V. Samet、A. M. Shestopalov、V. N. Nesterov、V. V. Semenov
DOI:10.1007/bf02495519
日期:1998.1
The reactions of stabilized sulfonium ylides with arylmethylenecyanothioacetamides proceed stereoselectively to yield 2-amino-4,5-dihydrothiophenes and cyclopropane-thiocarboxamides. The structures of the latter compounds were confirmed by X-ray diffraction analysis.
稳定的锍叶立德与芳基亚甲基氰硫代乙酰胺的反应立体选择性地进行,产生 2-氨基-4,5-二氢噻吩和环丙烷-硫代甲酰胺。后一种化合物的结构通过 X 射线衍射分析得到证实。
An Improved Stereoselective Synthesis of 5-Acyl-2-amino-4-aryl-3-cyano-4,5-dihydrothiophenes
作者:Aleksandr V. Samet、Anatolij M. Shestopalov、Vladimir N. Nesterov、Victor V. Semenov
DOI:10.1055/s-1997-1396
日期:1997.6
Sulfonium ylides generated from precursor bromides 2 react readily with arylidenecyanothioacetamides 1 to afford the title compounds with trans-configuration.