Reductive condensation of trichloromethylarenes with hydroxylamine and hydrazines in pyridine
作者:L.I. Belen'kii、D.B. Brokhovetskii、M.M. Krayushkin
DOI:10.1016/s0040-4020(01)90502-2
日期:1991.1
aryltrichloromethanes. Further transformations of the oximes in the reaction course can result in the formation of nitriles or 3,5-diaryl-1,2,4-oxadiazoles as final products. The conversion depth depends on reaction conditions and structures of trichloromethyl-arenes. When hydrazines used instead of hydroxylamine, respectivebenzaldehyde hydrazones or azines are obtained.
在吡啶中三氯甲基芳烃与羟胺的相互作用涉及芳基三氯甲烷的还原肟化。肟在反应过程中的进一步转化可导致形成腈或作为最终产物的3,5-二芳基-1,2,4-恶二唑。转化深度取决于三氯甲基芳烃的反应条件和结构。当使用肼代替羟胺时,获得了相应的苯甲醛或嗪。