Pyrimidine derivatives
AssigneeImperial Chemical Industries PLC
InventorsRaymond Elliott, Brian K. Snell, Raymond S. Gairns
Life of this patent
Estimating the term…
Abstract
Pyrimidine derivatives useful as plant growth regulators and fungicides having the general formula (I): ##STR1## wherein Y is optionally substituted cyclopropyl or 1-methyl-cyclopropyl or is optionally halo-substituted isopropyl or t-butyl; R.sup.2 is a group; --(CH.sub.2).sub.m --C.tbd.C--A or --(CH.sub.2).sub.n --CH.dbd.CH--A or --(CH.sub.2).sub.p --A wherein A is an optionally substituted phenyl group, m and n are integers from 0 to 2 and p is an integer from 2 to 4; and R.sup.3 is hydrogen or lower alkyl or alkenyl or alkynyl containing from 3 to 4 carbon atoms.
Claims9
A pyrimidine derivative having the general formula (I):
- ##STR6## and stereoisomers thereof, wherein Y is optionally substituted cyclopropyl or optionally substituted 1-methylcyclopropyl or is the group:
- ##STR7## wherein R.sup.1 is hydrogen or methyl;
- X is hydrogen or halogen;
- R.sup.2 is a group:
- --(CH.sub.2).sub.m --C.tbd.C--A (III)
- or
- --(CH.sub.2).sub.n --CH.dbd.CH--A (IV)
- or
- --(CH.sub.2).sub.p --A (V)
- wherein A is an optionally substituted phenyl group, m is an integer from 0 to 2, n is an integer from 0 to 2 and p is an integer from 2 to 4;
- and R.sup.3 is hydrogen, an alkyl group containing from 1 to 4 carbon atoms, an alkenyl group containing from 3 to 4 carbon atoms or an alkynyl group containing from 3 to 4 carbon atoms and agrochemically acceptable salts, esters and metal complexes of the compounds of formula (I) wherein R.sup.3 is hydrogen.
Dependencies are inferred from the claim text.