Oxepin- and Spiro-Annulation of 2-Pyridone in Conjunction with Claisen Rearrangement and Ruthenium Carbene Complex Mediated Enyne Metathesis (SUPPORTING DATA)

Brindaban      Roy; Krishna   C.   Majumdar; Habibur      Rahaman

doi:10.2174/157017806778341816

Abstract

A direct synthesis of substituted oxepin and spiroheterocycles has been achieved from substrates derived from 4-hydroxy-1,6-dimethyl pyridine-2-ones (1) by combining Claisen rearrangement and ring closing enyne metathesis. The RCEM proceeded smoothly under nitrogen atmosphere at room temperature in the presence of well-defined ruthenium catalyst A (10 mol%).

Keywords: 2-Pyridone, oxepin, ring-closing metathesis, Claisen rearrangement, enyne metathesis

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Letters in Organic Chemistry

Title: Oxepin- and Spiro-Annulation of 2-Pyridone in Conjunction with Claisen Rearrangement and Ruthenium Carbene Complex Mediated Enyne Metathesis (SUPPORTING DATA)

Volume: 3 Issue: 7

Author(s): Brindaban Roy, Krishna C. Majumdar and Habibur Rahaman

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Keywords: 2-Pyridone, oxepin, ring-closing metathesis, Claisen rearrangement, enyne metathesis

Abstract: A direct synthesis of substituted oxepin and spiroheterocycles has been achieved from substrates derived from 4-hydroxy-1,6-dimethyl pyridine-2-ones (1) by combining Claisen rearrangement and ring closing enyne metathesis. The RCEM proceeded smoothly under nitrogen atmosphere at room temperature in the presence of well-defined ruthenium catalyst A (10 mol%).

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Roy Brindaban, Majumdar C. Krishna and Rahaman Habibur, Oxepin- and Spiro-Annulation of 2-Pyridone in Conjunction with Claisen Rearrangement and Ruthenium Carbene Complex Mediated Enyne Metathesis (SUPPORTING DATA), Letters in Organic Chemistry 2006; 3 (7) . https://dx.doi.org/10.2174/157017806778341816