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    • Carbon-carbon bond formation and annulation reactions using trimethyl and triethyl orthoformates

      Subrata Ghosh Usha Ranjan Ghatak

      Volume 100 Issue 2-3 April 1988 pp 235-252

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/100/02-03/0235-0252

    • Keywords

       

      Trimethyl orthoformate; triethyl orthoformate; cyclopentenone and cyclohexenone annulations; carbonyl transposition and homologation; bridged bicyclo [3.3.1]nonanes; intramolecular hydride transfer; polycyclic synthesis

    • Abstract

       

      Synthetic utility of trimethyl and triethyl orthoformates for carbon-carbon bond formation is briefly surveyed, particularly in relation to dialkoxymethylation, carbonyl transposition-homologation, and cycloalkenone annulation reactions recently reported from the authors’ and other laboratories. The complex mechanisms involved in the one-step and two-step annulations of rigid β,γ- and γ, δ-unsaturated ketones have been discussed.

    • Author Affiliations

       

      Subrata Ghosh1 Usha Ranjan Ghatak1

      1. Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Calcutta - 700032, India

    • Dates

       
      Published
      April 1988

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