Selenium dioxide oxidises 2,7 - epoxydiisophoran - 1 - ol - 3 - one to the corresponding yellow 3,4-diketone. This is reduced to diisophor - 2(7) - en - 1 - ol - 3 - one (“diisophorone”) by Zn in acetic acid or on catalytic hydrogenation, or to 2,7 - epoxydiisophorane - 1,3,4 - triol by LAH or NaBH4. Alkaline H2O2 cleaves ring A of the 3,4-diketone, providing a degradation of the diisophorane- to the
二氧化硒将2,7-环氧二异佛烷-1-ol-3-1氧化为相应的黄色3,4-二酮。在
乙酸中或在催化加氢作用下,
锌可将其还原为二异佛尔基-2(7)-烯基-1-醇-3-一(“二
异佛尔酮”),或还原为2,7-环氧二异佛尔烷-1,3,4-三醇通过
LAH或NaBH 4。碱性H 2 O 2裂解3,4-二酮的环A,使二异佛烷-降解为双环[3.3.1]
壬烷-体系。所得的3-(2'-羧基-2',2'-二甲基)乙基-2,3-环氧-1-羟基-5,7,7-三甲基双环(3.3.1]
壬烷-2-
羧酸是可转化的在
重氮甲烷的作用下转化为其二甲酯。