Stereoselective total synthesis of racemic grandisol via 3-oximino-1,4,4-trimethylbicyclo[3.2.0]heptane. An improved practical procedure
作者:Goffredo Rosini、Monika Geier、Emanuela Marotta、Marino Petrini、Roberto Ballini
DOI:10.1016/s0040-4020(01)96088-0
日期:1986.1
(±)Grandisol was stereoselectively obtained via 1,4,4-trimethylbicyclo¦3.2.0¦heptane-3-one and its oxime by an improved procedure. 2,5,5-Trimethylhept-1,6-dien-4-ol, the open chain molecule, was synthesized by two routes. Its conversion into ( )grandisol was performed emploing the photobicyclization as key step.
通过改进的方法,通过1,4,4-三甲基双环β3.2.0β庚烷-3-酮及其肟立体选择性地得到(±)大丁酚。通过两种途径合成了2,5,5-Trimethylhept-1,6-dien-4-ol,即开链分子。以光双环化为关键步骤,将其转化为()格兰地索。