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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1587008Generated: November 2, 2026

Hydrochloric Acid → 2-Diphenylphosphorylamino-4-trichloromethylpyridine

https://huagongshe.com/reaction/1587008

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiphenylphosphinic chlorideHCID 73910—
Reactant4-(Trichloromethyl)pyridin-2-amineHCID 13710117—
Product2-Diphenylphosphorylamino-4-trichloromethylpyridineHCID 1976039256.7%

Reaction Steps

6.2 ml (0.03 mol) of diphenylphosphoryl chloride were added to 6.3 g (0.03 mol) of 2-amino -4trichloromethylpyridine and 60 ml of pryidine at 0° C. After 12 hours at 25° C., the reaction mixture was added to 200 ml of 5% strength hydrochloric acid. The colorless precipitate formed was isolated. 7.0 g (53%) of the desired product were obtained. Mp.: 134°-136° C.; Active Ingredient Example 1.016

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05216171
Source datasetuspto-grants-1993_06
ORD IDord-f4d77332f8ca4055bb4724aa2dbf5172
Source noteuspto-grants-1993_06