Construction of Quaternary Stereocenters by Nickel-Catalysis of Asymmetric Michael Reactions
摘要:
Quaternary stereocenters were constructed with an enantioselectivity of up to 91% ee under aerobic conditions and at ambient temperature in the Michael reaction of beta-dicarbonyl compounds and methyl vinyl ketone with Ni(OAc)(2). 4H(2)O and optically active trans-1,2-diaminocyclohexane as a chiral catalyst.
Construction of Quaternary Stereocenters by Nickel-Catalysis of Asymmetric Michael Reactions
摘要:
Quaternary stereocenters were constructed with an enantioselectivity of up to 91% ee under aerobic conditions and at ambient temperature in the Michael reaction of beta-dicarbonyl compounds and methyl vinyl ketone with Ni(OAc)(2). 4H(2)O and optically active trans-1,2-diaminocyclohexane as a chiral catalyst.
Quaternary stereocenters were constructed with an enantioselectivity of up to 91% ee under aerobic conditions and at ambient temperature in the Michael reaction of beta-dicarbonyl compounds and methyl vinyl ketone with Ni(OAc)(2). 4H(2)O and optically active trans-1,2-diaminocyclohexane as a chiral catalyst.