Synthesis of 6-(1,2-dihydro-1-oxo-phthalazin-4-yl)-2H-1,4-benzoxazin-3-(4H)-ones.

Authors
Chowdary, KS Prashant, A Rao, SS Krishnan, VSH
Citation
Ks. Chowdary et al., Synthesis of 6-(1,2-dihydro-1-oxo-phthalazin-4-yl)-2H-1,4-benzoxazin-3-(4H)-ones., HETEROCYC C, 6(5), 2000, pp. 477-482
Citations number
9
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLIC COMMUNICATIONS
ISSN journal
07930283 → ACNP
Volume
6
Issue
5
Year of publication
2000
Pages
477 - 482
Database
ISI
SICI code
0793-0283(2000)6:5<477:SO6>2.0.ZU;2-C
Abstract
A series of new 6-(1,2-dihydro-1-oxo-phthalazin-4-yl)-2H-1,4-benzoxazin-3-( 4H)ones were prepared by Friedet-Crafts reaction of 2H-1,1-benzoxazin-3-(4H )-ones with phthalicanhydride & cyclizing the o-substituted ketobenzoicacid with hydrazine hydrate to yield the title compound.