SYNTHESIS OF SOME SUBSTITUTED 5,6-DIHYDRO-7H-BENZO[C]XANTHEN-7-ONE AND ITS AZA ANALOGS

Citation
Pk. Mohakhud et al., SYNTHESIS OF SOME SUBSTITUTED 5,6-DIHYDRO-7H-BENZO[C]XANTHEN-7-ONE AND ITS AZA ANALOGS, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 35(9), 1996, pp. 904-910
Citations number
6
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
03764699
Volume
35
Issue
9
Year of publication
1996
Pages
904 - 910
Database
ISI
SICI code
0376-4699(1996)35:9<904:SOSS5A>2.0.ZU;2-9
Abstract
Synthesis of 8,10, oxy-6-phenyl-5,6-dihydro-7H-benzo[c]xanthen-7-ones 20 and 22, -phenyl-5,6-dihydro-5-aza-7H-benzo[c]xanthen-7-one 25 and p henyl-5,6,-dihydro-6-aza-7H-benzo[c]xanthen-7-one 29 has been accompli shed by photocyclization while attempts towards artobiloxanthone 2 via oxidative cyclization of appropriate 3-gamma-oxobutylffavone have not succeeded.