Syntheses of nitrile and methyl ester corresponding to (dl)-sarkomycin and of related compounds
作者:Jacques Froissant、Joëlle Vidal、Eryka Guibé-Jampel、Francois Huet
DOI:10.1016/s0040-4020(01)89959-2
日期:1987.1
3-trimethylsiloxy 2-cycloalkene carbonitriles. Their alkylation with chloromethyl phenyl sulfide followed by oxone oxidation to sulfones and sulfinic acid elimination on basic alumina led to α-methylene carbonyl compounds. Obtention of the ester involved acetalization of 3-oxo 2-phenylthiomethyl cyclopentane carbonitrile, basic hydrolysis into acid, deacetalization, estenfication, oxidation and elimination of sulfinic
腈和酯对应于(DL)-sarkomycin,6-和7-元环类似物腈,和3-甲基取代的腈制备。将氰基三甲基硅烷共轭添加到环状α-烯酮中,得到3-三甲基甲硅烷氧基2-环烯烃腈。它们用氯甲基苯硫醚进行烷基化,然后将酮氧化成砜,然后在碱性氧化铝上消除亚磺酸,生成α-亚甲基羰基化合物。获得该酯涉及3-氧代2-苯基硫代甲基环戊烷腈的缩醛化,碱性水解成酸,脱缩醛化,酯化,氧化和消除亚磺酸。