SYNTHESIS OF SOME 3(H)-OXONAPHTHO [2,1-B] PYRAN-2N-CARBOXAMIDE, BENZIMIDAZOLYL AND BENZOXAZOLYL COMPOUNDS (VOL 50, PG 102, 1993)

Citation
Am. Elagrody et al., SYNTHESIS OF SOME 3(H)-OXONAPHTHO [2,1-B] PYRAN-2N-CARBOXAMIDE, BENZIMIDAZOLYL AND BENZOXAZOLYL COMPOUNDS (VOL 50, PG 102, 1993), Afinidad, 50(446), 1993, pp. 253-255
Citations number
7
Categorie Soggetti
Chemistry
Journal title
ISSN journal
00019704
Volume
50
Issue
446
Year of publication
1993
Pages
253 - 255
Database
ISI
SICI code
0001-9704(1993)50:446<253:SOS3[P>2.0.ZU;2-5
Abstract
Interaction of ethyl 3(H)-oxonaphtho [2,1-b] pyran-2-carboxylate (I) w ith amines gave carboxamide derivatives (IIa-k), while the reaction of (I) with o-phenylenediamine and o-amino-phenol furnished benzimidazol yl and benzoxazolyl [2,1-b] pyran derivatives (IIIa & b) respectively. Also condensation of (I) with p-aminohippuric acid was studied. IR, H -1 NMR, Mass spectra were also investigated.