Reactions of Halogenomethanes in the Vapor Phase. Part 4. The Reactions of Imidazoles with Chloroform at 550 deg C, and a Comparison with their Liquid-phase Reactions with Trichloroacetate Ion or Hexachloroacetone and Base

DOI: 10.1039/P19800001427

Source and publish data:

Journal of the Chemical Society. Perkin transactions I p. 1427 - 1430 (1980)

Update date:2022-08-02

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Authors:

Busby, Reginald E.

Khan, Mohammad A.

Khan, Mohammad R.

Parrick, John

Shaw, C. J. Granville

Iqbal, Mohammad

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Article abstract of DOI:10.1039/P19800001427

1-Unsubstituted imidazoles and chloroform at 550 deg C in a flow system give mainly 5-chloropyrimidines, together with 4-chloropyrimidines and chloropyrazines.The effects of methyl substituents on the ratio of products is considered.The liquid-phase reactions of 2-methyl- and 2,4,5-trimethyl-imidazole under conditions in which dichlorocarbene is said to be formed in basic or neutral conditions were studied, and compared with the gas-phase reactions with chloroform.

Full text of DOI:10.1039/P19800001427

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