Polyfluorocycloalkenes. Part XII. Reaction of decafluorocyclohexene with alkanediols in the presence of base
作者:Raymond G. Plevey、David J. Sparrow
DOI:10.1039/p19760000573
日期:——
dioxa-heterocycles resulting from the base-assisted intramolecular reactions of the first formed 1- and 3-alkoxynonafluorocyclohexenes. With butane-1,4-diol only 1- and 3-(4-hydroxybutoxy)nonafluorocyclohexenes were formed; no cyclisation reactions were observed. These reactions emphasise some of the limitations of nucleophilic displacement reactions in the synthesis of heterocycles.
在2-乙酰氧基乙醇和1,3-丙二醇中的十氟环己烯和氢化钠得到的多组分混合物包含几个部分氟化的二氧杂杂环,这些化合物是由首先形成的1-和3-烷氧基九氟环己烯的碱辅助分子内反应产生的。用丁烷1,4-二醇仅形成1-和3-(4-羟基丁氧基)九氟环己烯;参见表1。没有观察到环化反应。这些反应强调了杂环合成中亲核取代反应的某些局限性。