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Synthesis and characterization of a novel heterocycle: 1‐Substituted‐4‐arylazamethylene‐6‐arylpyrazolo[5,4‐ d ]‐1,3‐oxazine
Author(s) -
He Kunlun,
Qiu Guofu,
Hu Xianming,
Lv Houjun,
Wang Junbo
Publication year - 2008
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.5570450211
Subject(s) - chemistry , aryl , alkyl , oxazines , acylation , characterization (materials science) , carboxamide , stereochemistry , d 1 , combinatorial chemistry , medicinal chemistry , organic chemistry , nanotechnology , catalysis , materials science , biochemistry , receptor
A series of novel heterocycles 1‐aryl‐ or alkyl‐substituted‐4‐arylazamethylene‐6‐arylpyrazolo[5,4‐ d ]‐1,3‐oxazines were synthesized from the acylation of (5‐amino‐1‐substituted‐pyrazol‐4‐yl)‐ N ‐carboxamide in 63‐89% isolated yields at room temperature within 12 hours. The structure was confirmed by X‐ray crystal analysis.