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.
一系列具有3-芳基或3,6-二芳基取代基的四氢吡営-4-酮和四氢硫代吡喃-4-酮衍生物通过双共轭加成水或H2S到二乙烯基酮中制备。这些起始材料通过两步法获得:将锂化的α-溴苯乙烯衍生物与丙烯醛或肉桂醛进行转化,随后用MnO2氧化二乙烯基醇。