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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 1
BKCSDE 32(1)
January 20, 2011 

Facile Synthesis of 3-Thioxo-3H-benzo[f ]chromen-2-yl methanone and 3H-Benzo[f ]chromene-3-one Under Solvent Free Condition
Okram Mukherjee Singh*, Nepram Sushuma Devi, Laishram Ronibala Devi, Ki Bum Lim, Yong Jin Yoon, Sang Geyong Lee*
Coumarin, CuCl2, Solvent free, β-Oxodithioesters, S,S-Acetal
A facile, convenient, efficient and high yielding synthesis of a combinatorial library of coumarins has been developed by the condensation of readily available β-oxodithioesters and S,S-acetal with 2-hydroxy-1-naphthaldehyde in the presence of catalytic amount of CuCl2 under solvent free conditions.
175 - 178
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