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Title: The structure of Hantzsch coumarin
Authors: Ramesh, P
Das, Anoop T
Mohandass, P
Nagasathya, R
Keywords: Dimethyl dicoumarin;Hantzsch coumarin;Wittig reaction
Issue Date: Sep-2008
Publisher: CSIR
Abstract: The dimethyl dicoumarin prepared by Hantzsch and Zurcher has been characterized as 4,6-dimethyl-2H,8H-benzo[1,2-b:4,5-b’]dipyran-2,8-dione by unambiguous synthesis of both angular (2a) and linear (2b) pyranocoumarins by Wittig reaction promoted by clay and comparing them with authentic Hantzsch coumarin prepared as described in literature. This is the first record of synthetic proof for the structure of Hantzsch coumarin.
Page(s): 1447-1450
ISSN: 0376-4699
Appears in Collections:IJC-B Vol.47B(09) [September 2008]

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