Type 1 Ring-Opening Reactions of Cyclopropanated 7-Oxabenzonorbornadienes with Organocuprates
作者:Emily Carlson、Jamie Haner、Mary McKee、William Tam
DOI:10.1021/ol5004737
日期:2014.3.21
For the first time, nucleophilic ring-openings of cyclopropanated 7-oxabenzonorbornadiene were investigated, providing a novel approach to the preparation of 2-methyl-1,2-dihydronaphthalen-1-ols. Satisfactory yields (up to 95%) were achieved using n-Bu2CuCNLi2 as the nucleophile and Et2O as the solvent. The reaction demonstrated successful incorporation of primary, secondary, tertiary and aromatic
首次研究了环丙烷化的7-恶唑基降冰片二烯的亲核开环,为制备2-甲基-1,2-二氢萘-1-醇提供了一种新颖的方法。令人满意的产率(高达95%),使用取得Ñ -Bu 2 CuCNLi 2作为亲核试剂和Et 2 O作为溶剂。该反应表明伯,仲,叔和芳族亲核试剂的成功引入,以及带有芳烃取代基和C1-桥头取代基的底物的开环。还提出了这些转换的通用机制。