Ruthenium-Bisimine: A New Catalytic Precursor for Regioselective Allylic Alkylation

Abstract

New complexes [Cp*Ru(bisimine)Cl] are active catalysts for the regioselective alkylation of allylic carbonates by soft carbonucleophiles, in favour of the branched isomers. The catalysts can be conveniently prepared in situ from [Cp^*Ru(cod)Cl] and a bulky aromatic bisimine.

regioselective allylic alkylation - ruthenium(bisimine) complex catalysed - coupling reactions

References

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(C₅Me₅)RuCl(MesN=CH-CH=NMes): selected ¹H NMR data (200 MHz): δ (ppm) 1.07 (s, 15 H, C₅Me₅), 1.87 (s, 6 H, 2 Me), 2.30 (s, 6 H, 2 Me), 2.38 (s, 6 H, 2 Me), 6.82 (s, 2 H, 2 HAr), 6.92 (s, 2 H, 2 HAr), 8.68 (s, 2 H, 2 CH=N).