Direct Catalytic Aldol-Type Reactions Using RCH2CN
摘要:
A copper fluoride-catalyzed cyanomethylation that can be applied to a wide range of ketones and aldehydes was developed using TMSCH2-CN as a nucleophile. The reaction was extended to a conceptually more advanced copper alkoxide-catalyzed direct addition of alkylnitriles to aldehydes, which can act as a surrogate direct catalytic aldol reaction of esters. These reactions can be applied to the first catalytic enantioselective cyanomethylation of ketones and direct catalytic enantioselective cyanomethylation of aldehydes.
A method of manufacturing a cyano compound by reacting a carbonyl compound with a nitrile compound having at least one α-hydrogen atom in the presence of a ligand and a metal compound of formula (III),
MX (III)
wherein M is a copper atom or a silver atom, and X is an alkoxy group, an alkyl group, an aryl group or an anionic residue.
A copper fluoride-catalyzed cyanomethylation that can be applied to a wide range of ketones and aldehydes was developed using TMSCH2-CN as a nucleophile. The reaction was extended to a conceptually more advanced copper alkoxide-catalyzed direct addition of alkylnitriles to aldehydes, which can act as a surrogate direct catalytic aldol reaction of esters. These reactions can be applied to the first catalytic enantioselective cyanomethylation of ketones and direct catalytic enantioselective cyanomethylation of aldehydes.