Cyclopentanones V. Synthesis of alkylsubstituted 1, 3??cyclopentenediones and 1, 3??cyclopentanediones

L Van Wijnsberghe…

Index: Van Wijnsberghe,L.; Vandewalle,M. Bulletin des Societes Chimiques Belges, 1970 , vol. 79, p. 699 - 705

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Citation Number: 10

Abstract

Abstract A general synthesis of 2, 3-dialkyl-1, 4-cyclopentenediones, 2, 3-dialkyl-1, 4- cyclopentanediones and 2-alkyl-1, 4-cyclopentenediones is described. The key intermediates are 2-alkyl-3, 5, 5-trialkoxy-2-cyclopentene-1-ones, which are easily obtained from 3-alkyl-1, 2, 4-cyclopentanetriones and orthoformic esters.