Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 563994Generated: October 25, 2026

Water → Methyl[5-(4-chlorophenyl)-3-methyl-1-(3-methylisothiazol-5-yl)-1h-pyrazol-4-yl]acetate

https://huagongshe.com/reaction/563994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSulfuric AcidHCID 1118—
Reactant(3-Methyl-isothiazol-5-yl)-hydrazineHCID 55282001—
ReactantMethyl 3-[(4-chlorophenyl)carbonyl]-4-oxopentanoateHCID 67004944—
SolventMethanolHCID 887—
ProductMethyl[5-(4-chlorophenyl)-3-methyl-1-(3-methylisothiazol-5-yl)-1h-pyrazol-4-yl]acetateHCID 131729291—

Reaction Steps

0.301 g (2.0 mmol) of 5-hydrazinyl-3-methylisothiazole and 0.099 ml (2.0 mmol) of concentrated sulfuric acid were added to 0.500 g (2.0 mmol) of methyl 3-[(4-chlorophenyl)carbonyl]-4-oxopentanoate in 10.00 ml of methanol, and the mixture was stirred under reflux for 6 hours. The mixture was poured into water and extracted with ethyl acetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08067611B2
Source datasetuspto-grants-2011_11
ORD IDord-1fca7c035105413ebe12f970b69db05f
Source noteuspto-grants-2011_11