Process for the preparation of 2,4-dimethylpyrrole

Details Process for the preparation of 2,4-dimethylpyrrole Process for the preparation of 2,4-dimethylpyrrole

1999-12-13

2000-12-26

McKane, Joseph K.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D207323

Patent

active

061662232

ABSTRACT:
A process for the preparation of 2,4-dimethylpyrrole is described in which a 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole is refluxed with from 10 to 30% strength aqueous alkali metal hydroxide solution until the solid has passed into solution, the reaction mixture is neutralized with acid and the mixture is refluxed further until decarboxylation is complete. The process makes it possible to work under significantly milder, less aggressive conditions than are known from the prior art.

REFERENCES:
Corwin et al., J. Am. Chem. Soc., 63, 1941, 1829-1834.
Org. Synth. Coll., vol. II, 1943, 217-218.
Org. Synth. Coll., vol. II, 1943, 202-204.

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