申请人:Eastman Chemical Company
公开号:US11518726B2
公开(公告)日:2022-12-06
Provided is a process for the preparation of certain 1,4-bicyclo[2.2.2]octane derivatives. The new synthetic procedure involves treating 1,4-dimethylene cyclohexane with an oxidizing agent in the presence of a transition metal catalyst to afford an oxo-substituted bicyclo[2.2.2]octane species. This intermediate structure can then be further derivatized. The processes of this disclosure thus affords a novel and simplified means for the commercial production of a wide variety of bicyclo[2.2.2]octane derivatives.
本发明提供了一种制备某些 1,4-双环[2.2.2]辛烷衍生物的工艺。新的合成工艺包括在过渡金属催化剂存在下用氧化剂处理 1,4-二亚甲基环己烷,从而得到一种氧化取代的双环[2.2.2]辛烷。这种中间结构可以进一步衍生化。因此,本公开的工艺为各种双环[2.2.2]辛烷衍生物的商业化生产提供了一种新颖的简化方法。