Premium
A new method for the preparation of 2‐carhoalkoxypyrazolo [5,1 ‐ B ] quinazolin‐9(1 H )ones
Author(s) -
Beam Charles F.,
Brown Jane,
Dawkins Donna R.,
Fives William P.,
Fleindel Ned D.
Publication year - 1979
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570160526
Subject(s) - chemistry , anthranilic acid , acetylene , medicinal chemistry , organic chemistry , combinatorial chemistry , stereochemistry
Anthranilic acid hydrazides were condensed with acetylene diesters, and the intermediate adduets were identified as aeylhydrazones of oxalacetic diester. These anthranilic hydrazones could be thermally cyclized to 2‐carboalkoxypyrazolo[5,1‐ b ] quinazolin‐9(1 H )ones.