Allylation of imidazoles. The beneficial effect of imidazole ligands on (.pi.-allyl)nickel coupling
摘要:
The coupling of (pi-allyl)nickel halide complexes with iodoimidazoles proceeds efficiently in toluene solution without the use of coordinating solvent or added ligand. Nickel-promoted allylation, and symmetrical coupling, of non-imidazole aryl halides is enhanced by using N-methylimidazole as an additive.
Allylation of imidazoles. The beneficial effect of imidazole ligands on (.pi.-allyl)nickel coupling
摘要:
The coupling of (pi-allyl)nickel halide complexes with iodoimidazoles proceeds efficiently in toluene solution without the use of coordinating solvent or added ligand. Nickel-promoted allylation, and symmetrical coupling, of non-imidazole aryl halides is enhanced by using N-methylimidazole as an additive.