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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1840385Generated: October 31, 2026

Thiophosgene → 2-Chloro-4-fluoro-1-isothiocyanatobenzene

https://huagongshe.com/reaction/1840385

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThiophosgeneHCID 10040—
ReactantBenzenamine, 2-chloro-4-fluoro-HCID 75013—
ReactantSodium BicarbonateHCID 516892—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
Product2-Chloro-4-fluoro-1-isothiocyanatobenzeneHCID 275758191%

Reaction Steps

Into a solution of 2-chloro-4fluoroaniline (500 mg, 3.44 mmol) in a mixture of chloroform and water (10 mL/10 mL) at room temperature, thiophosgene (0.53 mL, 6.88 mmol) and sodium bicarbonate (1.09 g, 10.32 mmol) were added. The mixture was stirred at room temperature for 16 hours. The mixture was partitioned between chloroform and water. The combined organic layer was then concentrated to give the desired product (586 mg, 91%). 1H NMR (CDCl3) δ 6.98 (m, 1H), 7.20 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06680317B2
Source datasetuspto-grants-2004_01
ORD IDord-850af977e5ed43459636a528fdd35295
Source noteuspto-grants-2004_01