213664-96-1Relevant articles and documents
Synthesis of bioactive polyheterocycles: Regioselective cyclisation of 5-cyclohex-2-enyl-6-hydroxy[1]benzopyran-2-one
Majumdar, Krishna C.,Chatterjee, Pranab
, p. 3633 - 3644 (2007/10/03)
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