conjugate addition of 1-alkenyl(disiamyl)boranes to α,β-unsaturated ketones, esters, or nitriles was carried out in the presence of Ni(acac)2 and triethylamine in DMF. The reactions provided γ,δ-unsaturated ketones, esters, and nitriles in high yields while retaining the original configuration of the 1-alkenylboranes. A similar addition reaction of 1-alkenyl(disiamyl)boranes to 1-acetyl-2-vinylcyclopropane
Reactions of cuprous methyltrialkylborates obtainable from trialkylboranes with acrylonitrile, ethyl acrylate and 1-acyl-2-vinylcyclopropane. Convenient syntheses of nitriles, carboxylic esters and γ,δ-unsaturated ketones
作者:Norio Miyaura、Mitsuomi Itoh、Akira Suzuki
DOI:10.1016/s0040-4039(00)93701-8
日期:1976.1
Synthesis of vinylcyclopentanes from vinylcyclopropanes and alkenes promoted by benzenethiyl radical
The Reactions of Organoboranes and Lithium Dialkylcuprates with 1-Acyl-2-vinylcyclopropanes. A Convenient New Route to γ,δ-Unsaturated Ketone Synthesis