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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 241516Generated: October 30, 2026

Ethanol → 4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-2-methyl-benzaldehyde-ethylthiosemicarbazone

https://huagongshe.com/reaction/241516

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant2-EthylhydrazinecarbothioamideHCID 22105028—
Reactant4-[3-(3,5-Dichlorophenyl)-3-(trifluoromethyl)-2,4-dihydropyrrol-5-yl]-2-methyl-benzaldehydeHCID 86691047—
SolventAcetic AcidHCID 176—
Product4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-2-methyl-benzaldehyde-ethylthiosemicarbazoneHCID 12357434276%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-2-methyl-benzaldehyde (208 mg, 0.520 mmol) and ethyl thiosemicarbazide (93 mg 0.12 mmol) in ethanol (5 mL) and glacial acetic acid (0.1 mL) was heated at 70° C. for 4 h. After cooling, the resulting precipitate was filtered and dried to give the title compound (198 mg, 76%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653000B2
Source datasetuspto-grants-2014_02
ORD IDord-06711fce0d6a45e9b983e9ef9313462c
Source noteuspto-grants-2014_02