Two-Component Assembly of Thiochroman-4-ones and Tetrahydrothiopyran-4-ones Using a Rhodium-Catalyzed Alkyne Hydroacylation/Thio-Conjugate-Addition Sequence
作者:Anaïs Bouisseau、John Glancy、Michael C. Willis
DOI:10.1021/acs.orglett.6b02909
日期:2016.11.4
β′-Thio-substituted-enones, assembled from the combination of β-tert-butylthio-substituted aldehydes and alkynes, using rhodium catalysis, are shown to smoothly undergo in situ intramolecular S-conjugate addition to deliver a range of S-heterocycles in a one-pot process. Aryl, alkenyl, and alkyl aldehydes can all be employed, to provide thiochroman-4-ones, hexahydro-4H-thiochromen-4-ones, and tetr
由β-叔丁硫基取代的醛和炔烃组合,使用铑催化组装而成的β'-硫代取代的烯酮,可以顺畅地进行原位分子内S-共轭加成反应,从而在其中传递一系列S-杂环一锅法。可以全部使用芳基,烯基和烷基醛,分别提供硫代色烷-4-酮,六氢-4 H-硫代色素-4-酮和四氢硫吡喃-4-酮。还进行了各种原位氧化,从而允许获得S,S-二氧化物衍生物以及不饱和变体。