-
- Home
- Journals
- Journal of Chemical Sciences
-
Neville V Fernandes
Articles written in Journal of Chemical Sciences
-
-
Volume 107 Issue 2 April 1995 pp 109-122 Organic
Jaysukhlal R Merchant Neville V Fernandes
A new synthesis of naphthopyrones and hexahydrospiro [naphthalene-2,4′-phenanthrene]-1,1′-diones has been accomplished by the Friedel-Crafts reaction of various 1-tetralones with α,β-unsaturated acids in the presence of polyphosphoric acid (PPA).
-
Volume 108 Issue 4 August 1996 pp 379-398 Organic
Jaysukhlal R Merchant Neville V Fernandes Vidyullata C Waghulde
A number of 1,2,3,4,4a,9a-hexahydro-9H-xanthen-9-ones have been prepared by the reaction of various phenols with 1-cyclohexene-1-carboxylic acids in the presence of polyphosphoric acid (PPA). However the reaction of 2,3-dimethylphenol gave in addition two isomeric 6,7-dimethyl-dodecahydro-indeno (1,2-a)xanthen-8,13-diones. 2,5-Dimethylphenol reacted differently giving the hexahydro-9H-fluoren-9-one instead. Dehydrogenation of the hexahydroxanthones with Pd/C in refluxing diphenyl ether afforded the corresponding xanthones in good yields (80–95%).
-
-
Journal of Chemical Sciences
Volume 135, 2023
All articles
Continuous Article Publishing mode
-
Journal of Chemical Sciences | News
-
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-