作者:Akimori Wada、Kyoko Sawada、Naomi Ono、Masayoshi Ito
DOI:10.1248/cpb.52.132
日期:——
A convenient and improved annulation method for the synthesis of bicyclic ketones was developed. A 2,2-dimethyl-6-(2-phenylsulfonyl)ethylcyclohexanone was converted into a sulfonylester by the addition of ethyl acetate and subsequent dehydration. A Dieckmann type condensation of the sulfonylester followed by desulfonylation afforded the 8,8-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene-2-one in good
开发了一种方便且改进的合成双环酮的方法。通过加入乙酸乙酯并随后脱水,将2,2-二甲基-6-(2-苯基磺酰基)乙基环己酮转化为磺酰基酯。磺酰基酯的狄克曼型缩合,然后进行磺酰化以良好的产率得到8,8-二甲基-1,2,3,4,5,6,7,8-八氢萘-2-酮。该环状方法也适用于苯并环辛酮衍生物的合成。