Studies on the Tandem Reaction of 4-Aryl-2,3-allenoates with Organozinc Reagents: A Facile Route to Polysubstituted Naphthols
作者:Guobi Chai、Zhan Lu、Chunling Fu、Shengming Ma
DOI:10.1002/chem.200901779
日期:2009.10.26
Diversified polysubstituted α‐naphthols have been efficiently constructed through a tandem reaction of easily available 2,3‐allenoates and organozinc reagents in moderate to excellent yields (see scheme). Some of the products may undergo a couple of sequential coupling reactions to afford polysubstituted naphthalenes.
A palladium catalyzed synthesis of tetrasubstituted allenes through a 1,4-palladium migration/carbene insertion/β-H elimination sequence has been developed.