作者:Gordon J.F. Chittenden
DOI:10.1016/s0008-6215(00)81892-3
日期:1982.10
has been studied. An improved procedure for the isolation of 1,2:5,6-di- O -isopropylidene- d -glucitol, the main equilibrium product, by direct crystallisation or via the 3,4-dibenzoate is described. Some aspects of the reaction are discussed and compared with results obtained previously from the isopropylidenation of 1 in the presence of zinc chloride.
摘要研究了在1,2-二甲氧基乙烷中用2,2-二甲氧基丙烷处理的中性条件下的d-葡萄糖醇(1)的异丙基化。描述了通过直接结晶或通过3,4-二苯甲酸酯分离主要平衡产物1,2:5,6-二-O-异亚丙基-d-葡萄糖醇的改进方法。对反应的某些方面进行了讨论,并将其与先前在氯化锌存在下由异丙基亚胺化1所得的结果进行了比较。