Stereoselective Oxindole Synthesis by Palladium-Catalyzed Cyclization Reaction of 2-(Alkynyl)aryl Isocyanates with Amides
作者:Tomoya Miura、Takeharu Toyoshima、Yusuke Takahashi、Masahiro Murakami
DOI:10.1021/ol900759f
日期:2009.5.21
reaction occurred on treatment of 2-(alkynyl)aryl isocyanates with amides in the presence of a palladium(0)/diphosphine catalyst to stereoselectively form 3-(amidoalkylidene)oxindoles. A carbon−nitrogen bond as well as a carbon−carbon bond were simultaneously introduced onto the alkyne moiety to construct an oxindole skeleton with stereoselective placement of the amino substituent cis to the carbonyl group
在钯(0)/二膦催化剂存在下,用酰胺处理2-(炔基)芳基异氰酸酯会发生新的环化反应,以立体选择性地形成3-(酰胺基亚烷基))吲哚。将碳-氮键以及碳-碳键同时引入炔烃部分,以构建羟吲哚骨架,并将氨基取代基顺式立体选择性地置于羰基上。