Highly enantioselective metallation–substitution alpha to a chiral nitrile
作者:Arghya Sadhukhan、Melanie C. Hobbs、Anthony J. H. M. Meijer、Iain Coldham
DOI:10.1039/c6sc03712g
日期:——
We report the deprotonation of a chiral nitrile and reaction of the resulting chiral organometallic species with a variety of electrophiles to give highly enantiomerically enriched 2-substituted nitrile products. The nitrile was treated with TMPMgCl and the resulting anion, an asymmetric alpha cyano Grignard species, was found to be configurationally stable at low temperature for a short time (half-life
我们报道了手性腈的去质子化以及所得手性有机金属物质与各种亲电子试剂的反应,得到高度对映体富集的2-取代腈产物。用 TMPMgCl 处理腈,所得阴离子(一种不对称 α 氰基格氏物种)被发现在低温下短时间内构型稳定(-104 °C 下半衰期为几分钟)。