98700-52-8

Upstream product

• 153863-42-4 (1,5-Diphenyl-1H-pyrazol-4-yl)-methanol 
• 98700-51-7 4-(4-Fluorophenylimino)methyl-1,5-diphenyl-1H-pyrazole 
• 98700-38-0 4-[3-(4-Fluoro-phenyl)-5-methylene-4,5-dihydro-3H-[1,2,3]triazol-4-yl]-morpholine 
• 3815-83-6 3,4-diphenylsydnone 

Downstream Products

• 193747-23-8 (1,5-Diphenyl-1H-pyrazol-4-yl)-phenyl-methanol 
• 296269-51-7 4-dimethylamino-1-(1,5-diphenyl-1H-pyrazol-4-yl)-butan-1-ol 

Relevant academic research and scientific papers

ω-Dialkylaminoalkyl Ethers of Phenyl-(5-substituted 1-phenyl-1H-pyrazol-4-yl)methanols with Analgesic and Anti-inflammatory Activity

A series of carbinols 3a-f was prepared starting from methanols 1a-f via oxidation with pyridinium chlorochromate to aldehydes 2a-f, followed by a Grignard reaction of the latter. Reaction of 3a-f with ω-chloroalkyldialkylamine hydrochlorides afforded a series of aminoether derivatives 4g-t. Compounds 4i,m-p,s showed a good analgesic activity in the acetic acid writhing test in mice. Moreover, compounds 4h,l,s exhibited a moderate anti-inflammatory activity in the carrageenan-induced edema assay in rats.

ν-Triazolines, XXIV-Pyrazolecarbaldehydes from 5-Amino-4,5-dihydro-4-methylene-ν-triazoles and Sydnones

The sydnones 1a-c react with the 4,5-dihydro-ν-triazoles 2a-c by long refluxing at 110-140 deg C affording via non-isolable adducts with elimination of CO2 and N2 and rearrangement a mixture of 4,5-dihydropyrazoles 3a-c, 3-pyrazolecarbaldehyde anils 4a-d, and 3-pyrazolecarbaldehydes 5a-c.Compounds 3 can be deaminated to give 4 which can be hydrolyzed to yield the 3-pyrazolecarbaldehydes 5. - The sydnones 6a,b react similarey with 2a to give a mixture of 4-pyrazolecarbaldehyde anils 7a,b and 4-pyrazolecarbaldehydes 8a,b.The structural assignments are based on spectroscopic and X-ray diffraction data.