Synthesis of bioactive polyheterocycles: Regioselective cyclisation of 5-cyclohex-2-enyl-6-hydroxy[1]benzopyran-2-one

Article abstract of DOI:10.1080/00397919808004910

5-Cyclohex-2-enyl-6-hydroxycoumarin (4) was synthesised in 80% yield alongwith 4% of 7-cyclohex-2-enyl-6-hydroxyeoumarin (5) by the thermal sigmatropic rearrangement of 6-cyclohex-2-enyloxycoumarin (3) in refluxing N,N-diethylaniline. Treatment of 4 with

Full text of DOI:10.1080/00397919808004910

Synthetic Communications
ISSN: 0039-7911 (Print) 1532-2432 (Online) Journal homepage: http://www.tandfonline.com/loi/lsyc20
Synthesis of Bioactive Polyheterocycles:
Regioselective Cyclisation of 5-Cyclohex-2-Enyl-6-
Hydroxy[1]Benzopyran-2-One
Krishna C. Majumdar & Pranab Chatterjee
To cite this article: Krishna C. Majumdar & Pranab Chatterjee (1998) Synthesis of Bioactive
Polyheterocycles: Regioselective Cyclisation of 5-Cyclohex-2-Enyl-6-Hydroxy[1]Benzopyran-2-
One, Synthetic Communications, 28:19, 3633-3644, DOI: 10.1080/00397919808004910
To link to this article: http://dx.doi.org/10.1080/00397919808004910
Published online: 22 Aug 2006.
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Date: 15 June 2016, At: 08:34