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Title: One-pot synthesis of coumarin substituted dihydrofurans
Authors: Chunduru, Venkata Sreenivasa Rao
Vedula, Rajeswar Rao
Keywords: 3-(2-Bromoacetyl)coumarins;Trans-2,3-dihydrofurans;Pyridinum ylides;One-pot reaction
Issue Date: Sep-2012
Publisher: NISCAIR-CSIR, India
Abstract: A sequential one-pot two-step tandem reaction for an efficient synthesis of 2,3-dihydrofurans substituted with 2H-benzopyrans has been developed. One-pot reaction of in situ formed benzopyran substituted pyridinium ylides with aromatic aldehydes and dimedone gives corresponding 2,3-dihydrofurans in good yields. The structures of the final compounds have been assigned as trans-2,3-dihydrofurans on the basis of their NMR spectra.
Page(s): 1417-1420
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.51B(09) [September 2012]

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