Asymmetric cycloadditions of dienes to chloronitroso compounds derived from carbohydrate ketones: syntheses of (−)-physoperuvine and (+)-epibatidine
作者:Adrian Hall、Patrick D. Bailey、Richard H. Wightman、David C. Rees
DOI:10.1039/a806326e
日期:——
An α-chloronitroso compound derived from D-xylose undergoes cycloadditions with cyclic dienes to give bicyclic dihydrooxazines of high enantiomeric purity; such adducts were used in a synthesis of (â)-physoperuvine and a formal synthesis of (+)-epibatidine, whilst a pseudoenantiomeric chloronitroso compound is also available from L-sorbose.
由D-木糖衍生的一种α-氯亚硝基化合物与环状二烯烃进行环加成反应,生成高对映纯度的双环二氢嗪嗪类化合物;这些加成产物曾用于合成(–)毒箭木碱和形式合成(+)-棘蛙毒素,同时也可从L-山梨糖获得一种伪对映体的氯亚硝基化合物。