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PROCESS FOR THE PREPARATION OF KETOALKYNOIC ACIDS AND USE OF THE PROCESS IN AN IMPROVED SYNTHESIS OF 2- (SUBSTITUTED)-CYCLOPENTANE-1,3,4-TRIONES
PROCESS FOR THE PREPARATION OF KETOALKYNOIC ACIDS AND USE OF THE PROCESS IN AN IMPROVED SYNTHESIS OF 2- (SUBSTITUTED)-CYCLOPENTANE-1,3,4-TRIONES
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机译:酮基炔酸的制备方法及其在2-(取代)-环戊烷-1,3,4-三酮的合成中的应用
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ABSTRACTReaction of a 2-methyl 2-(alkenyl)-1,3-dioxolane withan .alpha.,.omega.-dihalogenoalkane to obtain a 2-methyl-2-(.omega.-chloro-alkynyl)-dioxolane, conversion of the latter to a corres-ponding nitrile, and hydrolysis of the nitrile to form aketoalkynoic acid is a novel process for preparing theacid.Use of the process in the synthesis of 2-(substituted)-cyclopentane-1,3,4-triones improves that synthesis.
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