US 5,329,041 AGranted

Trisubstituted benzoic acid intermediates

AssigneeImperial Chemical Industries PLC

InventorNhan H. Nguyen

Life of this patent

Estimating the term…

2-methyl-3-(substituted)-4-(substituted) benzoic acids or their alkyl ester that are useful to prepare herbicidal compounds.

Dependent claims

A compound having the structural formula ##STR22## wherein R is C.sub.1 -C.sub.4 alkyl.

Dependencies are inferred from the claim text.

C07C 69/92
Of monocyclic hydroxy carboxylic acids, the hydroxy groups and the carboxyl groups of which are bound to carbon atoms of a six-membered aromatic…
C07C 69/88
Of monocyclic hydroxy carboxylic acids, the hydroxy groups and the carboxyl groups of which are bound to carbon atoms of a six-membered aromatic…
C07C
Acyclic or carbocyclic compounds

From the US filing history. Foreign family members aren’t listed.

Loading patent…