Synthesis of α,β-Unsaturated Aldehydes and Methyl Carboxylic Esters from 2-Acetylenic Phenyl Sulfides.
作者:Fortes, Carlos C.、Garrote, Clevia F. D.
DOI:10.1080/00397919708005915
日期:1997.11
2-Alkynylthio benzenes were reduced to 2-Alkenylthio benzenes with diisobutyl aluminum hydride. Mono chlorination of these compounds with sulfuryl chloride and pyridine followed by hydrolysis, in the presence of Cu-II salts, gave alpha,beta-unsaturated aldehydes.2-Alkynylthio benzenes were converted into 2-Alkynyl 1,1-bis thiobenzenes by monochlorination with sulfuryl chloride and pyridine followed by treatment with thiophenol and triethylamine. These substances were then converted to alpha,beta-unsaturated methyl carboxylic esters by way of isomerization with sodium methoxide to the corresponding allene and treatment with hydrochloric acid and methanolysis in the presence of iodine.
Synthesis of α-Acetylenic Aldehydes from 2-Acetylenic Phenyl Sulfides
作者:Carlos C. Fortes、Clévia F. D. Garrote
DOI:10.1080/00397919308012609
日期:1993.11
Monochlorination at the 1 position, with sulfuryl chloride, followed by hydrolysis converted 2-acetylenic phenyl sulfides into 2-acetylenic aldehydes.
Synthesis of 2-Acetylenic Carboxylic Acids, 1-Sulfinyl and 1-Sulfonyl-2-ketones from 2-Acetylenic Phenyl Sulfides
作者:Carlos C. Fortes、Clevia F.D. Garrote
DOI:10.1080/00397919708005006
日期:1997.9
2-acetylenic phenyl sulfides into 1-methoxy-2-acetylenic phenyl sulfides. Oxidation with chromic acid gave 2-acetylenic carboxylic acids. Oxidation of 2-acetylenic phenyl sulfides with Oxone® and hydrogen peroxide in aceticacid gave the corresponding sulfoxides and sulfones respectively. Diethylamine addition to the triple bond produced enamines which were hydrolyzed with aqueous hydrochloric acid to the corresponding