Studies on the diastereoselective alkylation of enolate dianion of (S)-4-carboethoxymethyl-2-oxazolidinone
作者:Deok-Chan Ha、Kun-Eek Kil、Kwang-Sun Choi、Hye-Sang Park
DOI:10.1016/0040-4039(96)01210-5
日期:1996.8
Diastereoselective alkylation of enolate dianion of (S)-4-carboethoxymethyl-2-oxazolidinone has been studied. The increased anti-selectivity in the presence of HMPA was explained by stereoelectronic effect of the electron-rich nitrogen atom of the oxazolidinone amidate.