lamides with N-tosylhydrazones has been successfully developed. This strategy provide a simple route to the synthesis of very valuable 1-cyanocyclopropanecarboxamides with a quaternary stereogenic center in good yields and with high diastereoselectivities (up to 90% yield with 19:1 dr). The reaction could be performed in one-pot fashion and in a gram-scale from aryl aldehydes.
已经成功地开发了具有N-
甲苯磺酰hydr的缺电子烯烃3-取代的2-
氰基
丙烯酰胺的无
金属
环丙烷化。该策略提供了一种简单的方法,可合成具有四价立体异构中心的非常有价值的1-
氰基
环丙烷甲酰胺,且产率高,非对映选择性高(在19:1 dr时产率高达90%)。该反应可以以一锅的方式和以克为单位由芳基醛进行。