Process for the preparation of optionally 2-substituted 5-chloroimidazole-4-carbaldehydes
AssigneeLonza Ltd.
InventorsGareth Griffiths, Gerhard Stucky
Life of this patent
Estimating the term…
Abstract
A process for the preparation of 2-substituted 5-chloroimidazole-4-carbaldehydes of the general formula: ##STR1## wherein R is hydrogen, an alkyl group, an alkenyl group, a cycloalkyl group, a benzl group or a phenyl group. The imidazole compounds are important starting products for the preparation of hypotensive pharmaceuticals or herbicides.
Claims5
A 2-substituted 5-chloroimidazol-4-ylidenemethylamine of the formula:
- ##STR11## wherein R is hydrogen, alkyl, alkenyl, cycloalkyl, benzyl or phenyl, and R.sub.3 and R.sub.4 are identical or different and each is (C.sub.1 -C.sub.6)-alkyl.
(2-n-Butyl-5-chloroimidazol-4-ylidenemethyl)dimethylamine.
(2-n-Butyl-5-chloroimidazol-4-ylidenemethyl)diethylamine.
(2-n-Propyl-5-chloroimidazol-4-ylidenemethyl)dimethylamine.
(2-n-Propyl-5-chloroimidazol-4-ylidenemethyl)diethylamine.
Dependencies are inferred from the claim text.