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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 730767Generated: October 29, 2026

Phosphorus oxychloride → 2-chloro-4-nitro-6-(trifluoromethyl)-1H-benzoimidazole

https://huagongshe.com/reaction/730767

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
Reactant4-Nitro-6-(trifluoromethyl)-1,3-dihydro-2H-benzimidazol-2-oneHCID 11630155—
Product2-chloro-4-nitro-6-(trifluoromethyl)-1H-benzoimidazoleHCID 11637534—

Reaction Steps

The benzoimidazol-2-one from step (b) above (1.8 g, 7.3 mmol) reacted with POCl3 under the conditions of Example 1c to give the title compound as a yellow solid. MS (ESI, pos. ion) m/z: 266 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582761B2
Source datasetuspto-grants-2009_09
ORD IDord-88985aa2ac8e4a429fb93afd0ea8f372
Source noteuspto-grants-2009_09