The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1991
Filed:
May. 30, 1989
Raymond Elliott, Lower Early, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
Pyrimidine derivatives useful as plant growth regulating agents have the formula (I) : ##STR1## wherein Y is an optionally substituted tertiary alkyl group --C(R.sup.3 R.sup.4 R.sup.5) wherein R.sup.3, R.sup.4 and R.sup.5 are separately hydrogen or an optionally substituted alkyl group, provided that (a) no more than one of R.sup.3, R.sup.4 and R.sup.5 is hydrogen and that (b) R.sup.3, and R.sup.4 and R.sup.5 are not all methyl or halomethyl at the same time and that (c) the group Y contains a total of from 4 to 10 alkyl carbon atoms; R.sup.1 is a group --(CH.sub.2).sub.m --C.ident.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, or R.sup.1 contains from 4 to 8 carbon atoms and is optionally substituted alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkenyl, cycloalkenyl, cycloalkenylalkyl, alkylcycloalkenyl or alkynyl; and R.sup.2 is hydrogen, or an alkyl, alkenyl or alkynyl group containing from 3 to 4 carbon atoms.