Synthesis 2007(20): 3195-3200  
DOI: 10.1055/s-2007-990781
PAPER
© Georg Thieme Verlag Stuttgart · New York

N-Heterocyclic Carbene Catalyzed Reaction of Enals and Diaryl-1,2 diones via Homoenolate: Synthesis of 4,5,5-Trisubstituted γ-Butyrolactones

Vijay Nair*a,b, Sreekumar Vellalatha, Manojkumar Poonotha, Eringathodi Sureshc, Sreemathi Vijia
a Organic Chemistry Section, Regional Research Laboratory (CSIR), Trivandrum 695019, India
b Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
c Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar 364002, India
Fax: +91(471)2491712; e-Mail: vijaynair_2001@yahoo.com;
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Publikationsverlauf

Received 23 May 2007
Publikationsdatum:
21. September 2007 (online)

Abstract

Nucleophilic heterocyclic carbene (NHC)-catalyzed annulation of enals proceeds with variety of 1,2-dicarbonyl compounds, leading to the formation of 4,4,5-trisubstituted γ-butyrolactones.

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CCDC 280173 (4a) and 626910 (11a) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.