Dimethylformamide → 2-Methyl-3,5-dioxo-4-phenyl-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonyl chloride

HRID 870406Notes

Reaction equation

HRID 870406 reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[N:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[C:5](=[O:15])[C:4]([C:16]([OH:18])=O)=[N:3]1.C(Cl)(=O)C([Cl:22])=O.CN(C)C=O>ClCCl>[CH3:1][N:2]1[C:7](=[O:8])[N:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[C:5](=[O:15])[C:4]([C:16]([Cl:22])=[O:18])=[N:3]1

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 65578Oxalyl chlorideHCID 666324842-Methyl-3,5-dioxo-4-phenyl-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic acid

Product 1

HCID 866815642-Methyl-3,5-dioxo-4-phenyl-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonyl chloride

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

0.93 g (3.76 mmol) of 2-methyl-3,5-dioxo-4-phenyl-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic acid and 0.72 g (5.64 mmol) of oxalyl chloride were dissolved in dichloromethane (20 ml). To the mixture, a drop of N,N-dimethylformamide was added and stirred at room temperature for 2 hours. The reaction solution was concentrated to obtain 2-methyl-3,5-dioxo-4-phenyl-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonyl chloride as a pale yellow oily substance.

Workup

  1. concentrationThe reaction solution was concentrated

Sources & evidence

ORD record
ord-bfcf481a491945029abb235d324911f9
Source dataset
uspto-grants-2015_03
Patent number
US08969554B2

Reaction notes

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