Imperial Chemical Industries Limited

Zeneca Limited

Raymond S Gairns

Raymond Elliott

Anthony A Watson

Brian K Snell

David A Griffin

A compound suitable for use as a charge transport compound in organic photoconductors or as a charge control agent in electrophotographic toners. The compound, in the neutral form, is of the Formula (1): ##STR1## wherein: Ar is of formula (a), (b) or (c) ##STR2## each L independently is H, C.sub.1-4 -alkyl or halo; R.sup.1, R.sup.3 and R.sup.4 are each independently alkyl, substituted alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl, cycloalkyl or allyl;

Chemical compounds

A compound of Formula (1): ##STR1## wherein: Ar is ##STR2## R.sup.1 is alkyl, substituted alkyl, aryl or substituted aryl, aralkyl or substituted aralkyl;

Carbazole compounds

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;

Pyrimidine derivatives

A pyrimidine derivative having the general formula (I): ##STR1## and stereoisomers thereof, wherein Y is optional substituted cyclopropyl or optionally substituted 1-methylcyclopropyl or is the group: ##STR2## wherein R.sup.1 is hydrogen or methyl; X is hydrogen or halogen; R.sup.2 is an optionally substituted alkyl, cycloalkyl, cycloalkylalkyl or alkylcycloalkyl group, each of said groups containing a total of from 4 to 8 carbon atoms; or is an optionally substituted alkenyl, cycloalkenyl, cycloalkenylalkyl, or alkylcycloalkenyl group, each of said groups containing a total of from 4 to 8 carbon atoms; or is an optionally substituted alkynyl group containing a total of from 4 to 8 carbon atoms; 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. These compounds are useful as plant growth regulating agents and fungicides.

Growing community of inventors

Whitefield, United Kingdom

Raymond S Gairns