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Title: Synthesis of dihydrofuro and benzofuro benzopyran-2[H]-one
Authors: Soman, Shubhangi S
Issue Date: May-1999
Publisher: NISCAIR-CSIR, India
Abstract: 2,5-Dimethyl-9-hydroxy-4-(propen-2-yl)-dihydrofuro[3,2-g][1]benzopyran-7[H]-one 4 has been prepared from 7,8-dihydroxy-4-methyl coumarin 1 by allylation, Claisen rearrangement and cyclisation, while benzofuro[3,2-g]-11-hydroxy-4-methylbenzopyran2[H]-one 9 has been prepared from 1 by condensing it with 2-bromocyc1ohexanone followed by cyc1isation and dehydrogenation.
Page(s): 545-547
Appears in Collections:IJC-B Vol.38B(05) [May 1999]

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