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Scheme 1. Synthesis of 2 and 3.

Scheme 1. Synthesis of 2 and 3.

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Scheme 1. Synthesis of 2 and 3.
Scheme 3. Synthesis of...
Scheme 4. Synthesis of the thiazoles (7a,b).
Scheme 8. Formation of...
Pages 33-42 ARTICLE Synthesis of Some Pyrazole Derivatives from 5-Chloro-and 5-Azido-1,3-diphenyl-1H-pyrazole-4-carbaldehydes
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  • Mar 2020
N-[(5-Azido-1,3-diphenyl-1H-pyrazole-4-yl)methylene]-N-arylamines (4a-c) and N-[(5-Substituted-1,3-diphenyl-1H-pyrazole-4-yl)methylene]hydrazides (5a-e) were prepared from 5-azido-1,3-diphenyl-1H-pyrazole-4-carbaldehyde (3) and 5-chloro-1,3-diphenyl-1H-pyrazole-4-carbaldehyde (2), respectively. Thermolysis of (4a-c) and (5d-e) afforded 5-arylamino-...
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