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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 237100Generated: October 30, 2026

Chloroform → 3-Chloro-6-(o-chlorophenyl)-1,2,4-triazine

https://huagongshe.com/reaction/237100

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant6-(o-chlorophenyl)-1,2,4-triazin-3(2H)-oneHCID 12581287—
SolventDimethylformamideHCID 6228—
Product3-Chloro-6-(o-chlorophenyl)-1,2,4-triazineHCID 12581288—

Reaction Steps

A suspension of 53 g. of 6-(o-chlorophenyl)-1,2,4-triazin-3(2H)-one in 400 ml. of chloroform is cooled in an ice bath and 400 ml. of phosphorus oxychloride is added followed by 3 g. of N,N-dimethylformamide. The mixture is refluxed overnight and treated as described in Example 12, giving 3-chloro-6-(o-chlorophenyl)-1,2,4-triazine as white needles.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04159375
Source datasetuspto-grants-1979_06
ORD IDord-4e83232dfe3a455abe347a94cf3a2b3e
Source noteuspto-grants-1979_06