Syntheses, structure analyses, and reactions of 1,3,5-trioxepanes and related compounds
作者:Kevin J. McCullough、Araki Masuyama、Keith M. Morgan、Masatomo Nojima、Yuji Okada、Syuzo Satake、Shin-ya Takeda
DOI:10.1039/a802928h
日期:——
Acid-catalysed condensations of 1,5- or 1,6-dicarbonyl compounds with ethylene glycol give 1,3,5-trioxepane derivatives as a result of neighbouring participation by the adjacent carbonyl group during the acetalization process. With trimethylene glycol, the related 1,3,5-trioxocanes have also been obtained. Reaction of the 1,3,5-trioxepanes with (a) Grignard reagents gives dialkyl-substituted cyclic
1,5-或1,6-二羰基化合物与乙二醇的酸催化缩合产生1,3,5-三氧杂环丁烷衍生物,这是由于缩醛化过程中相邻羰基的相邻参与。使用三亚甲基二醇,也已经获得了相关的1,3,5-三氧杂环丁烷。1,3,5-三氧杂环丁烷与(a)格氏试剂反应生成二烷基取代的环状醚,(b)四氯化钛-烯丙基三丁基锡生成二烯丙基取代的环状醚,(c)在三氟甲磺酸三甲基甲硅烷基酯存在下的三乙基硅烷提供了相应的环醚。