Yttrium-Mediated Conversion of Vinyl Grignard Reagent to a 1,2-Dimetalated Ethane and Its Synthetic Application
作者:Ryoichi Tanaka、Hiroaki Sanjiki、Hirokazu Urabe
DOI:10.1021/ja077992u
日期:2008.3.1
ethane was generated from a vinyl Grignard reagent in the presence of yttrium(III) chloride, sodium cyclopentadienide, and diisobutylaluminum hydride (Dibal). This reagent enables the regio- and stereoselective (metaloethyl)metalation of acetylenes to produce ethylated alkenes after hydrolysis. In addition to simple hydrolysis, further carbon−carbon bond formation or functionalization at the metaloethyl