作者:Valentin Rautenstrauch、Roger L. Snowden、Simon M. Linder
DOI:10.1002/hlca.19900730416
日期:1990.6.20
(±)-Muscone ((±)-1) has been synthesised in three steps from 2-(2′-methylprop-2′-enyl)cyclododecan-1-one (2). The synthesis involves two key transformations: a Lewis-acid-mediated intramolecular ene reaction (23) and the β-cleavage of the bicyclic potassium alkoxide 3a′ to the macrocyclic enone (Z)-11.
Processes for obtaining purified unsaturated macrocyclic compounds
申请人:Agan Aroma & fine chemicals Ltd.
公开号:US10844036B2
公开(公告)日:2020-11-24
A process of obtaining a purified geometric isomer of an unsaturated macrocyclic compound is disclosed herein. The process is effected by contacting an ion exchange medium comprising silver ions with a mixture comprising at least one geometric isomer of the unsaturated macrocyclic compound, to thereby obtain at least one fraction comprising the purified geometric isomer of the macrocyclic compound. A system configured for performing the process is also disclosed.