Reductive cyclodimerization of arylmethylidenemalononitriles promoted by samarium and catalytic amount of iodine: facile synthesis of cyclopentene derivatives.
Samarium and a catalytic amount of iodine were used to obtain functionalized cyclopentenes by reductive dimerization followed by intramolecular cyclization of 1,1-dicyanoalkenes under mild conditions.
Chen
Jue
J
Ningbo Institute of Technology, Zhejiang University, Ningbo 315104, China. chenjue@hkem.com
Zhang
Yong-min
YM