Patent ID: 7462404

Claim:
A boron compound having the general chemical formula (I) as follows wherein: Ar 1 represents a chemical group selected from the group consisting of unsubstituted and substituted monocyclic and polycyclic heteroaryl groups having at least a ring nitrogen atom for forming a coordination bond to boron as shown in formula I and, optionally, also including one or more additional ring nitrogen atoms subject to the proviso that such nitrogen atoms do not occur in adjacent positions, X and Z being selected from the group consisting of carbon and nitrogen, and wherein Y is carbon or, optionally, nitrogen if neither of X and Z is nitrogen, the substituents for said substituted heteroaryl groups, if present, being selected from the groups consisting of substituted and unsubstituted hydrocarbyl, substituted and unsubstituted hydrocarbyloxy, fluorocarbon, halo, nitrile, amino alkylamino, dialkylamino and thiophenyl groups; Ar 2 represents a group selected from the group consisting of monocyclic and polycyclic aryl and heteroaryl groups, any of which may optionally be substituted with one or more substituent groups selected from the group consisting of substituted and unsubstituted hydrocarbyl, substituted and unsubstituted hydrocarbyloxy, fluorocarbon, halo, nitrile, amino alkylamino, dialkylamino and thiophenyl groups; R 1 represents hydrogen or a group selected from substituted and unsubstituted hydrocarbyl, halohydrocarbyl and halo groups; and R 2 and R 3 each independently represent a moiety selected from the group consisting of alkyl, cycloalkyl, cycloalkylalkyl, haloalkyl, halo, monocyclic, polycyclic, aryl, heteroaryl, aralkyl and heteroaralkyl groups, any of which may optionally be substituted with one or more moieties selected from the group consisting of alkyl, cycloalkyl, cycloalkylalkyl, haloalkyl, aryl, aralkyl, alkoxy, aryloxy, halo, nitric, amino, alkylamino and dialkylamino groups.