Synthesis of 6H-[1]-Benzopyrano[3,4-h]-1,6-Naphthyridine-5,7-Diones
摘要:
Hitherto unreported 6H-[1]-benzopyrano[3,4-h]-1,6-naphthyridine-5, 7-diones have been accomplished (4a-f) by an intramolecular cyclodehydrochlorination reaction of 3-(2'-chloro nicotinamido)-2H-1-benzopyran-2-ones (3a-f) obtained by the reaction of 3-amino coumarins (1a-f) with 2-chloronicotinoyl-chloride (2).
Synthesis of 6H-[1]-Benzopyrano[3,4-h]-1,6-Naphthyridine-5,7-Diones
摘要:
Hitherto unreported 6H-[1]-benzopyrano[3,4-h]-1,6-naphthyridine-5, 7-diones have been accomplished (4a-f) by an intramolecular cyclodehydrochlorination reaction of 3-(2'-chloro nicotinamido)-2H-1-benzopyran-2-ones (3a-f) obtained by the reaction of 3-amino coumarins (1a-f) with 2-chloronicotinoyl-chloride (2).
Synthesis of 6H-[1]-Benzopyrano[3,4-h]-1,6-Naphthyridine-5,7-Diones
作者:K. Rajendra Prasad、Malleshwar Darbarwar
DOI:10.1080/00397919208021643
日期:1992.9
Hitherto unreported 6H-[1]-benzopyrano[3,4-h]-1,6-naphthyridine-5, 7-diones have been accomplished (4a-f) by an intramolecular cyclodehydrochlorination reaction of 3-(2'-chloro nicotinamido)-2H-1-benzopyran-2-ones (3a-f) obtained by the reaction of 3-amino coumarins (1a-f) with 2-chloronicotinoyl-chloride (2).