Chloral → Pyridine, 2,3,5-trichloro-

HRID 1389547Notes

Reaction equation

HRID 1389547 reaction equation
[Cl:1]C(Cl)(Cl)C=O.C(#N)C=C.[Cl:11][CH:12]([CH2:15][C:16]([Cl:20])(Cl)[CH:17]=O)[C:13]#[N:14]>O>[Cl:1][C:17]1[C:16]([Cl:20])=[CH:15][C:12]([Cl:11])=[CH:13][N:14]=1

Participants

5

Reactant 3

HCID 6407ChloralHCID 7855AcrylonitrileHCID 129361852,4,4-Trichloro-5-oxopentanenitrile

Product 1

HCID 27666Pyridine, 2,3,5-trichloro-

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A process for producing 2,3,5-trichloropyridine, which process comprises causing trichloroacetaldehyde to undergo an addition reaction, in the presence of a catalyst, with acrylonitrile, and cyclising the formed 2,4,4-trichloro-4-formylbutyronitrile of the formula I ##STR2## with the splitting-off of water, to give 2,3,5-trichloropyridine.

Workup

  1. additionan addition reaction

Sources & evidence

ORD record
ord-a24d3fdf13fd494e9e08c5ce6236ac15
Source dataset
uspto-grants-1981_01
Patent number
US04245098

Reaction notes

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