Reactions of an endoperoxide with chiral ketones. Diastereoselective formation of 1,2,4-trioxanes and 1,3-dioxolanes
作者:Charles W. Jefford、Shu-juan Jin、Gérald Bernardinelli
DOI:10.1016/0040-4039(91)80487-q
日期:1991.12
1,4-Diphenylcyclopent-2-ene 1,4-endoperoxide on catalysis with trimethylsilyl trifluoromethane-sulfonate reacted with (−)-menthone in a doubly diastereoselective manner to yield two tricyclic 1,2,4-trioxanes having the 3S,5S,6S and 3R,5R,6R configurations respectively. The corresponding pair of 1,3-dioxolanes arising by Baeyer-Villiger-type rearrangement was also formed.
1,4-二苯环戊-2-烯1,4-内过氧化物在三甲基甲硅烷基三氟甲烷磺酸盐的催化下与(-)-薄荷酮以双非对映选择性的方式反应生成两个具有3S,5S的三环1,2,4-三恶烷,配置分别为6S和3R,5R,6R。也形成了由Baeyer-Villiger型重排产生的相应的一对1,3-二氧戊环。