Synthesis of 3-Aryl-Substituted Tetrahydropyran-4-ones and Tetrahydrothiopyran-4-ones
作者:Jens Christoffers、Anna Rosiak
DOI:10.1055/s-2006-941572
日期:2006.6
A series of tetrahydropyran-4-one and tetrahydrothiopyran-4-one derivatives with 3-aryl or 3,6-diaryl substituents were prepared by double conjugate addition of water or H2S to divinyl ketones. These starting materials were accessed in two steps by conversion of lithiated α-bromostyrene derivatives with acrolein or cinnamaldehyde and subsequent oxidation of the divinylalcohols with MnO2.