Patent ID: 7250526
Filing Date: 2007-07-31
Classification: B01J,C07B,C07C,C07D,C07F

Abstract:
1. A catalyst having the general formula: in which: R A represents —NR B represents —O—, —OH, OR E represents a linking group comprising 2–4 carbon atoms linking A and B, said carbon atoms optionally carrying one or more substituents; M represents a Group VIII transition metal capable of catalysing transfer hydrogenation; and Y represents an anionic group, a basic ligand or a vacant site; provided that when Y is not a vacant site that at least one of A or B carries a hydrogen atom, characterised in that at least one of said groups R 20 to R 22 or R 24 to R 28 is present in the form of an optionally substituted sulphonated hydrocarbyl group, a sulphonated perhalogenated hydrocarbyl group, or an optionally substituted sulphonated heterocyclyl group.