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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2351247Generated: November 1, 2026

Bromine → HCID 54523503, compound

https://huagongshe.com/reaction/2351247

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantHCID 14720686HCID 14720686—
SolventMethanolHCID 887—
ProductHCID 54523503HCID 5452350349.3%

Reaction Conditions

Temperature0 °C

Reaction Steps

0.53 g of N-(1,3-dimethyl-4-ethoxycarbonyl-5-pyrazolesulfonyl)-N'-(4,6-dimethyl-2-pyrimidinyl)-thiourea is suspended in 30 ml of methanol, followed by adding dropwise 0.21 g of bromine while stirring at 0° C. The suspension is stirred at the same temperature for 30 minutes and then at room temperature for 30 minutes. Then the precipitating crystals are filtered and washed with methanol. Recrystallization of the crystals from acetonitrile yields 0.26 g of the title compound as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04872901
Source datasetuspto-grants-1989_10
ORD IDord-598cb81fd0b54a3eb271320b7cd01d43
Source noteuspto-grants-1989_10