Transformation of the geraniol skeleton into the fragranol and grandisol skeletons
Abstract
Racemic 6,7-epoxygeranyl t-butyl sulphide (2) was lithiated [butyl-lithium–1,2-bis(dimethylamino)ethane] at C(1) to give the (1E)-epoxyallyl-lithium (10) which cyclised to give the alcoholates of the (racemic) cyclobutyl carbinols (4) and (5)(fragranol and grandisol skeletons) and of a single (racemic) cyclopentanol, (6) or (7).