A selective C–H insertion/olefination protocol for the synthesis of α-methylene-γ-butyrolactone natural products
作者:Matthew G. Lloyd、Mariantonietta D'Acunto、Richard J. K. Taylor、William P. Unsworth
DOI:10.1039/c5ob02579f
日期:——
A regio- and stereoselective one-pot C–H insertion/olefination protocol has been developed for the late stage installation of α-methylene-γ-butyrolactones into conformationally restricted cyclohexanol-derivatives.
A simple synthesis of cis- and trans-fused 14,15-dinoreudesmanolides
作者:Chiaki Kuroda、Shigeru Shimizu、James Y. Satoh
DOI:10.1039/c39870000286
日期:——
Three possible stereoisomers of 14,15-dinoreudesmanolide, the structure of which consists of an α-methylene-γ-lactone ring fused to a trans-decalin ring, have been synthesized from a dialdehyde monoacetal viaα-trimethylsilylmethyl-α,β-unsaturated esters.