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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 67778Generated: October 29, 2026

Phosphorus oxide (P4O10) → 4-(4-Chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenylimino-4-thiazoline hydrobromide

https://huagongshe.com/reaction/67778

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxide (P4O10)HCID 14812—
Reactant4-(4-Chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenyliminothiazolidin-4-ol hydrobromideHCID 20527317—
SolventWaterHCID 962—
Product4-(4-Chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenylimino-4-thiazoline hydrobromideHCID 20527346—

Reaction Steps

2.5 g (50 mmoles) of 4-(4-chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenyliminothiazolidin-4-ol hydrobromide are heated rapidly in a jacket, which has been preheated to 220° C., in vacuo (0.1 mm Hg) over phosphorus pentoxide. The substance melts with foaming, as a result of the elimination of water, and solidifies immediately after the end of the reaction, with recrystallization. Slightly green colored crystals; melting point 264° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04346088
Source datasetuspto-grants-1982_08
ORD IDord-d5bdb40cd2b5457ca0efdf1021e3579c
Source noteuspto-grants-1982_08