87885-78-7

Upstream product

• 19078-32-1 3,4,4,5-tetramethyl-4H-pyrazole 
• 93-97-0 benzoic acid anhydride 
• 613-94-5 benzoic acid hydrazide 
• 87885-67-4 3,3-dimethylpentane-2-benzoyl-4-(p-methylbenzoyl)dihydrazone 
• 87885-62-9 1-benzoyl-4,5-dihydro-5-hydroxy-3,4,4,5-tetramethyl-1H-pyrazole 
• 3142-58-3 3,3-dimethyl-2,4-pentanedione 
• 87885-69-6 1-benzoyl-5-(p-methylbenzoylazo)-3,4,4,5-tetramethyl-2-pyrazoline 
• 87885-73-2 1-benzoyl-5-benzoylazo-3,4,4,5-tetramethyl-2-pyrazoline 

Downstream Products

• 98669-85-3 6-benzoyl-3-phenyl-8,9,9-trimethyltriazaspiro<4.4>nona-2,7-diene 
• 98669-94-4 1-benzoyl-4',4',5'-trimethyl-3,8'-diphenylspirooxa<1,2,7>triazabicyclo<3.3>non<7>ene> 
• 110606-83-2 5-<2-(benzoylhydrazono)-1,1-dimethylpropyl>-1-methyl-3-phenyl-1H-pyrazole 
• 87885-62-9 1-benzoyl-4,5-dihydro-5-hydroxy-3,4,4,5-tetramethyl-1H-pyrazole 
• 133610-31-8 2-Benzoyl-4,4,5-trimethyl-2,4-dihydro-pyrazol-3-one 
• 98669-87-5 6-benzoyl-3-(4-chlorophenyl)-8,9,9-trimethyltriazaspiro<4.4>nona-2,7-diene 
• 98669-86-4 6-benzoyl-3-(4-methylphenyl)-8,9,9-trimethyltriazaspiro<4.4>nona-2,7-diene 
• 110606-75-2 5-<2-(benzoylhydrazono)-1,1-dimethylpropyl>-1,3-diphenyl-1H-pyrazole 
• 110606-74-1 6-benzoyl-8,9,9-trimethyl-1,3-diphenyl-1,2,6,7-tetrazaspiro<4.4>nona-2,7-diene 
• 110606-80-9 6-benzoyl-8,9,9-trimethyl-1-phenyl-3-(p-tolyl)-1,2,6,7-tetrazaspiro<4.4>nona-2,7-diene 
• 110606-81-0 5-<2-(benzoylhydrazono)-1,1-dimethylpropyl>-1-phenyl-3-(p-tolyl)-1H-pyrazole 
• 98669-95-5 5-<2-(benzoylhydrazono)-1,1-dimethyl-propyl>-3-phenylisoxazole 
• 115174-60-2 1-benzoyl-5-benzoylhydrazino-3,4,4,5-tetramethylpyrazoline-2 
• 133610-37-4 Acetic acid 2-benzoyl-4,4,5-trimethyl-2,4-dihydro-pyrazol-(3E)-ylidenemethyl ester 

Relevant academic research and scientific papers

5-HYDRAZINO-2-PYRAZOLINES

1-Acyl-5-hydrazino-2-pyrazolines have been obtained by reaction of the appropriate hydrazines with aliphatic 1,3-diketones, 1-acyl-5-hydroxy-2-pyrazolines, and 1-acyl-5-methylene-2-pyrazolines.The latter were synthesized by acylating 3,4,4,5-tetramethyl-4

Oxidation of Bis-aroylhydrazones of 3,3-Dimethylpentane-2,4-dione and Thermal Decomposition of the Oxidation Products (1)

Oxidation of the title bis-aroylhydrazones 2 with lead tetraacetate gives 1-aroyl-5-aroylazo-3,4,4,5-tetramethyl-2-pyrazolines 6 in good yields.The aroylazopyrazolines 6 decompouse by refluxing in chloroform of ethanol solution to 1-aroyl-5-hydroxy-3,4,4,5-tetramethyl-2-pyrazolines 3, 1-aroyl-5-methylene-3,4,4-trimethyl-2-pyrazoles 10 and 1-aroyl-3,4,4,5-tetramethyl-2-pyrazolines 11.The spectral data of the, prepared compounds, as well as the reaction mechanisms are discussed.