Stereoselective Synthesis of β-(Hydroxymethylaryl/alkyl)-α-methylene-γ-butyrolactones
作者:David M. Hodgson、Eric P. A. Talbot、Barry P. Clark
DOI:10.1021/ol200711f
日期:2011.5.20
Zinc or a chromium(II) source with 3-(bromomethyl)furan-2(5H)-one (3) and an aldehyde gives beta-(hydroxymethylaryl/alkyl)-alpha-methylene-gamma-butyrolactones 5 in good yields and high diastereoselectivities. The methodology is demonstrated in concise syntheses of (+/-)-hydroxymatalresinol (8) and (+/-)-methylenolactocin (10) by subsequent arylboronate conjugate addition and translactonization, respectively.