Preparation of 1-alkylimidazoles

Details Preparation of 1-alkylimidazoles Preparation of 1-alkylimidazoles

1988-08-30

1989-09-05

Schwartz, Richard A.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23390

Patent

active

048640301

ABSTRACT:
Process for the preparation of 1-alkylimidazoles of the general formula (I) ##STR1## where R.sup.1 is alkyl, R.sup.2 and R.sup.3 are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R.sup.4 is carboxy, alkoxycarbonyl R.sup.5 OCC--, carbamoyl, or cyano, and R.sup.5 is an alkyl of from 1 to 8 carbon atoms--by the reaction of imidazoles of the general formula (II) ##STR2## with dialkyl sulfates of the general formula (III)

REFERENCES:
patent: 4672128 (1987-06-01), Kempe et al.
patent: 4704459 (1987-11-01), Tudo et al.
R. Jones J. Am. Chem. Soc., vol. 71, pp. 644-647 (1949).
K. Takahashi, et al., Bull. Chem. Soc. Japan, 53, pp. 557-558 (1980).
J. Chem. Soc. pp. 21-32 (1928), W. Hubball et al.

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