2-Phenallyl as a versatile protecting group for the asymmetric one-pot three-component synthesis of propargylamines
作者:Nina Gommermann、Paul Knochel
DOI:10.1039/b507810e
日期:——
2-Phenallyl was found to be a versatile protecting group of primary amines for the asymmetric one-pot three-component synthesis of propargylamines which leads to enantiomeric excess of up to 96%; it can be easily removed with a palladium(0)-catalyzed allylic substitution using 1,3-dimethylbarbituric acid as a nucleophile.
2-苯偶酰是一种对伯胺具有多种保护作用的保护基团,它在不对称一锅法三组分合成炔丙胺的过程中,能够使得对映体过量度高达96%;通过使用1,3-二甲基巴比妥酸作为亲核试剂,进行钯(0)催化下的烯丙基取代反应,可以轻松地将之移除。