Stereoselective synthesis of benzofulvenes via a palladium-catalyzed cyclization of 1,3-dienes derived from Morita–Baylis–Hillman adducts
作者:Cheol Hee Lim、Ko Hoon Kim、Jin Woo Lim、Jae Nyoung Kim
DOI:10.1016/j.tetlet.2013.08.053
日期:2013.10
A facile synthesis of benzofulvenes was carried out starting from the Morita–Baylis–Hillman adducts of 2-bromobenzaldehyde. The synthesis was carried out via the sequential bromination, Wittig reaction with aldehyde, and Pd-catalyzed intramolecular Mizoroki–Heck reaction. The stereochemistry of benzofulvenes was dependent on the reaction condition, especially on the kinds of base and reaction time