Syntheses of Jasmone and the Related Compounds. I. Preparation of Dihydrojasmone and the Homologs from γ, γ-Dialkylparaconic Acids1

K Sisido, S Torii, M Kawanisi

Index: Sisido,K. et al. Journal of Organic Chemistry, 1964 , vol. 29, p. 904 - 907

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Citation Number: 15

Abstract

October 7, 196s r,-pDialkylparaconic acids (111) were synthesized by hydrolysis of r,- pdialkyl-a, p-dicarbethoxybutyrolac-tones (IV), or by means of lactonization of the Stobbe half-esters (IX). The butyrolactones (IV) were obtained by the condensation of ethyl@- dialkylglycidates (V) with sodiomalonate. Treatment of the paraconic acids (111) with polyphosphoric acid gave the corresponding 2, 3-dialkyl-2-cyclopenten-l-ones (I), ...