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

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    • 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

  • Journal of Chemical Sciences | News

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