Highly enantioselective Michael addition reactions of 2-substituted benzofuran-3(2H)-ones to nitroolefins
作者:Zhi-Pei Zhang、Nan Dong、Xin Li、Jin-Pei Cheng
DOI:10.1039/c5ob01691f
日期:——
A highly enantioselective Michaeladdition reaction of 2-substituted benzofuran-3(2H)-ones to nitroolefins was promoted by a bifunctional squaramide catalyst. As a result, a number of chiral 2,2′-substituted benzofuran-3-one derivatives, bearing adjacent quaternary–tertiary stereocenters, were efficiently synthesized with excellent enantioselectivities.
Synthesis of benzofuro[3,2-b]indoline amines via deamination-interrupted Fischer indolization and their unexpected reactivity towards nucleophiles
作者:Terry Tomakinian、Régis Guillot、Cyrille Kouklovsky、Guillaume Vincent
DOI:10.1039/c6cc00365f
日期:——
We report the access to the benzofuro[3,2-b]indoline framework via an interrupted Fischer indolization and its unexpected reactivity towards allyl nucleophiles.
我们报告通过中断的菲舍尔吲哚及其对烯丙基亲核试剂的意外反应性访问苯并呋喃[3,2- b ]二氢吲哚骨架。