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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1607227Generated: October 30, 2026

4-(Trifluoromethyl)phenyl isocyanate → Methyl 3-(4-chlorophenyl)-4-methyl-1-{[4-(trifluoromethyl)phenyl]carbamoyl}-4,5-dihydro-1H-pyrazole-4-carboxylate

https://huagongshe.com/reaction/1607227

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(Trifluoromethyl)phenyl isocyanateHCID 73768—
Reactant3-(4-chlorophenyl)-4-carbomethoxy-4-methyl-4,5-dihydro-1H-pyrazoleHCID 19852123—
ProductMethyl 3-(4-chlorophenyl)-4-methyl-1-{[4-(trifluoromethyl)phenyl]carbamoyl}-4,5-dihydro-1H-pyrazole-4-carboxylateHCID 10803995%

Reaction Steps

3-(4-chlorophenyl)-4-carbomethoxy-4-methyl-4,5-dihydro-1H-pyrazole (Example O) and 4-trifluoromethylphenyl isocyanate were reacted by substantially following the procedure given in Example D to give a 95% yield of N-(4-trifluoromethylphenyl)-3-(4-chlorophenyl)-4-carbomethoxy-4-methyl-4,5-dihydro-1H-pyrazole-1-carboxamide. NMR data was consistent with the structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04863947
Source datasetuspto-grants-1989_09
ORD IDord-0f6de54fdbe14f2698a674234a5b5c00
Source noteuspto-grants-1989_09