Hydroxy Chalcogenide-Promoted Morita-Baylis-Hillman Alkylation Reaction: Intermolecular Applications with Alkyl Halides as Electrophiles
作者:Ana Gradillas、Efres Belmonte、Rondes Ferreira da Silva、Javier Pérez-Castells
DOI:10.1002/ejoc.201301743
日期:2014.3
Hydroxysulfides acted as catalysts to promote the Morita–Baylis–Hillmanalkylationreaction of cyclohexenones and dihydropyridinones. The procedure worked efficiently with a variety of halides as electrophiles. Side reactions were in competition with the MBH alkylation, but fine-tuning the reaction conditions minimized their occurence.
The combination of acetic acid with Pd-2(dba)(3).CHCl3 and dppf [1.1(1)-Bis(diphenylphosphino ferrocene)] is a new type of catalytic system, capable of effecting the addition of protected and/or functionalized amines to allenes with high regio- and stereoselectivity. (C) 1997 Elsevier Science Ltd.