REACTION OF SPIRONAPHTHALENONES WITH HYDROXYLAMINE HYDROCHLORIDE .4.

Authors
KASTURI TR SATTIGERI JA PRAGNACHARYULU PVP CAMEROON TS PRADEEP B
Citation
Tr. Kasturi et al., REACTION OF SPIRONAPHTHALENONES WITH HYDROXYLAMINE HYDROCHLORIDE .4., Tetrahedron, 51(10), 1995, pp. 3051-3060
Citations number
10
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron → ACNP
ISSN journal
00404020
Volume
51
Issue
10
Year of publication
1995
Pages
3051 - 3060
Database
ISI
SICI code
0040-4020(1995)51:10<3051:ROSWHH>2.0.ZU;2-Q
Abstract
Reaction of 1-methoxynaphthalene with 1-formylnaphthalene in presence of n-BuLi/TMEDA, followed by deoxygenation and demethylation gave the bisnaphthol 6. Oxidation of 6 with KOBr yielded the spironaphthalenone s 4a-b and 5a-b. The spironaphthalenones 3a-c on reaction with NH2OH.H Cl gave naphth[2,1-c]isoxazole derivatives 9a-c. While similar reactio n of 4a-b gave the pyrrolotropones 11a-b, spironaphthalenones 5a-b aff orded the naphth[1,2-c]isoxazole derivatives 12a-b.