作者:Ramu Sridhar Perali、Suresh Mandava、Venkata Rao Chunduri
DOI:10.1016/j.tetlet.2011.04.015
日期:2011.6
A 1,4 O→O silyl migration followed by nucleophilic substitution with phthalimide was observed under Mitsunobu reaction conditions. This one step secondary alcohol protection and primary alcohol substitution with N-nucleophiles was extended to a variety of 2-hydroxyethyl trialkylsilylether derivatives. A possible mechanism has been postulated based on the pKa values of the alcohol and nucleophile. The
在Mitsunobu反应条件下观察到1,4 O → O甲硅烷基迁移,然后被邻苯二甲酰亚胺进行亲核取代。一步醇的仲醇保护和N-亲核试剂取代伯醇的作用扩展到了各种2-羟乙基三烷基甲硅烷基醚衍生物。已经基于醇和亲核试剂的p K a值推测了可能的机理。目前的一锅甲硅烷基迁移和取代反应可能会在新型亚氨基糖衍生的抗糖尿病药的立体选择性合成中得到应用。