Practical and efficient enantioselective synthesis of α-amino acids in aqueous media
作者:Rosa M. Suárez、José Pérez Sestelo、Luis A. Sarandeses
DOI:10.1039/b413017k
日期:——
Enantiomerically pure natural and unnatural alpha-amino acids have been synthesized from a chiral methyleneoxazolidinone by means of a highly diastereoselective 1,4-conjugate addition of alkyl iodides in aqueous media. The zinc-copper conjugate addition reaction exhibits high chemoselectivity, with the possibility of using functionalized iodides, to afford a single diastereomer in short reaction times and with
对映体纯的天然和非天然α-氨基酸已经通过在水性介质中烷基碘的高度非对映选择性的1,4-共轭加成反应从手性亚甲基恶唑烷酮合成。锌-铜共轭物加成反应显示出高的化学选择性,可以使用官能化的碘化物,从而在短的反应时间内以良好的收率得到单一的非对映异构体。