Synthesis of 2,3-Bis(arylamino)benzofurans and 2,3-Bis(arylimino)-2,3-dihydrobenzofurans by a Lewis Acid Catalyzed Reaction of 2-Aryliminophenols with Aryl Isocyanides
作者:Kazuhiro Kobayashi、Yuu Shirai、Shuhei Fukamachi、Hisatoshi Konishi
DOI:10.1055/s-0029-1218609
日期:2010.2
that is based on the reaction of 2-aryliminophenols with aryl isocyanides in the presence of a catalytic amount of boron trifluoride diethyl etherate. The reaction gives 2,3-bis(arylamino)benzofurans, some of which are transformed into 2,3-bis(arylimino)-2,3-dihydrobenzofurans by air oxidation, mostly during workup. benzofurans - o-hydroxybenzylideneamines - isocyanides - boron trifluoride - imidoyl
描述了一种有效的制备2,3-双(芳基氨基)苯并呋喃和2,3-双(芳基)-2,3-二氢苯并呋喃的方法,该方法基于2-芳基苯酚与芳基异氰化物的反应。催化量的三氟化硼二乙醚。该反应产生2,3-双(芳基氨基)苯并呋喃,其中一些通过空气氧化转化成2,3-双(芳基氨基)-2,3-二氢苯并呋喃,主要是在后处理中。 苯并呋喃-邻羟基苯二甲胺-异氰化物-三氟化硼-酰亚胺基阳离子