Highly enantioselective synthesis of chiral imides and derived products via chiral base desymmetrisation
作者:David J Adams、Alexander J Blake、Paul A Cooke、Christopher D Gill、Nigel S Simpkins
DOI:10.1016/s0040-4020(02)00367-8
日期:2002.6
The enantioselective deprotonation of several ring-fused imides with a chiral base, followed by electrophilic quenching, gives a range of chiral products in good yield and in ≥91% ee. The absolute stereochemistry of two of the products was determined by X-ray crystallography. A number of the imide products were subjected to further, highly regioselective, transformations, including enolate substitution
几种具有手性碱的环稠合酰亚胺的对映选择性去质子化,然后进行亲电猝灭,可得到一系列手性产物,收率良好,ee≥91%。通过X射线晶体学测定了两种产物的绝对立体化学。使许多酰亚胺产物进行进一步的高度区域选择性的转化,包括烯醇酸酯取代,还原和硫磺化。