Syntheses of the terpenoid precursors cyclopent-2-enone and cyclohex-2-enone diesters

I. Kádas, V. Morvai, G. Árvai, L. Tőke, A. Szöllösy, G. Tóth, M. Bihari

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Two reaction pathways were elaborated for the practical and convenient synthesis of the title compounds. The first route applies a bromination-dehydrobromination sequence to introduce the double bond into 1-alkoxycarbonyl-2-oxocycloalkylacetic and propionic esters (4a-c, 7a, b). The application of 2,6-lutidine for dehydrobromination of α-bromocycloalkanones diesters (5a-c, 8a, b) provides sufficient selectivity to carry out this step without affecting the sensitive ester group. Alternative pathways, involving Michael reaction of diethyl 2-acetylsuccinate or -glutarate with acrolein and subsequent intramolecular aldol condensation, are presented in the case of cyclohex-2-enone derivatives 2a, b.

Original languageEnglish
Pages (from-to)107-117
Number of pages11
JournalMonatshefte fur Chemie
Volume126
Issue number1
DOIs
Publication statusPublished - Jan 1995

Fingerprint

Terpenes
Esters
Glutarates
Acrolein
Condensation
Derivatives
cyclodrine
2,6-lutidine
3-hydroxybutanal

Keywords

  • 2,6-Lutidine
  • Aldol condensation
  • Bromination
  • Cyclopent-2-enone and cyclohex-2-enone derivatives
  • Dehydrobromination

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Syntheses of the terpenoid precursors cyclopent-2-enone and cyclohex-2-enone diesters. / Kádas, I.; Morvai, V.; Árvai, G.; Tőke, L.; Szöllösy, A.; Tóth, G.; Bihari, M.

In: Monatshefte fur Chemie, Vol. 126, No. 1, 01.1995, p. 107-117.

Research output: Contribution to journalArticle

Kádas, I. ; Morvai, V. ; Árvai, G. ; Tőke, L. ; Szöllösy, A. ; Tóth, G. ; Bihari, M. / Syntheses of the terpenoid precursors cyclopent-2-enone and cyclohex-2-enone diesters. In: Monatshefte fur Chemie. 1995 ; Vol. 126, No. 1. pp. 107-117.
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AU - Szöllösy, A.

AU - Tóth, G.

AU - Bihari, M.

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