z-logo
Premium
Heterocycles from Pyrazoloylhydroximoyl Chloride: Synthesis of Certain Quinoxaline, Benzothiadiazine, Benzoxadiazine, Quinazolinone, Imidazo[1,2‐ a ]pyridine, Imidazo[1,2‐ a ]pyrimidine, Isoxazole, Pyrazolo[3,4‐ d ]pyridazine and Pyrrolidino[3,4‐ d ]isoxazolin‐4,6‐dione Derivatives
Author(s) -
Zohdi Hussein F.,
Osman Tabia A.,
Abdelhamid Abdou O.
Publication year - 1997
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199700095
Subject(s) - chemistry , isoxazole , benzothiadiazine , pyridine , quinazolinone , quinoxaline , methylene , pyrimidine , medicinal chemistry , chloride , benzoyl chloride , organic chemistry , stereochemistry
3‐Ethoxycarbonyl‐5‐methyl‐1‐(4‐methylphenyl)‐4‐pyrazoloylhydroximoyl chloride (1) reacted with o ‐phenylenediamine, o ‐aminothiophenol, o ‐aminophenol and methyl anthranilate to afford 3‐nitrosoquinoxaline, benzothiadiazine, benzoxadiazine, and 3‐hydroxyquinazoline, respectively. Imidazo[1,2‐ a ]pyridine, imidazo[1,2‐ a ]pyrimidine and isoxazole derivatives were obtained via the reaction of 1 with 2‐aminopyridine, 2‐aminopyrimidine and the appropriate active methylene compounds, respectively. Pyrazolo[3,4‐ d ]pyridazines, and pyrrolidino[3,4‐ d ]isoxazolines derivatives were also synthesized. The structures of the newly synthesized compounds were established on the basis of spectral data and alternate synthesis whenever possible.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here