An Improved Protocol for the Preparation of 2,6-DI(<i>tert</i>-Butyl)-4-methylphenyl (BHT) Alkanoates
作者:P. A. Evans、A. L. Stanley
DOI:10.1080/00397919508011385
日期:1995.2
Abstract Treatment of the acid chloride derivatives 2a-e with potassium 2,6-di(tert-butyl)-4-methyl phenoxide 1b afforded the corresponding BHT esters 3a-e in 83–95% yield.
Synthesis of Silyloxyvinylstannanes from BHT Ester Enolates and Stannyllithium Reagents. Copper(I)-Mediated Coupling with Alkenyl Halides
作者:Asunción Barbero、Francisco J. Pulido
DOI:10.1055/s-2001-14590
日期:——
The synthesis of silyloxyvinylstannanes was achieved via reaction of BHT ester enolates with tributylstannyllithium and trapping of the resulting enolates with phenyldimethylchlorosilane. They were coupled with alkenyl iodides through a Cu(I)-mediated reaction to generate silyl dienol ethers which were readily transformed into α,β-unsaturated ketones.