Silver-Catalyzed Enantioselective Mannich Reaction of Diazoacetate Esters with N-Boc Aldimines
The highly enantioselective Mannich reaction of diazoacetate esters with N-Boc aldimines catalyzed by silver(I) triflate in the presence of (R)-DM-SEGPHOS is reported. The reaction is broad in scope with respect to the (hetero)aromatic aldehyde-derived al
Robertson, Gerard P.,Farley, Alistair J. M.,Dixon, Darren J.
p. 2785 - 2792
(2020/02/04)
Process for production of amines
A process for producing an amine which is characterized by reacting an imine with a nucleophilic compound (except a trialkylsilyl vinyl ether) in the presence of a phosphoric acid derivative represented by the formula (1): wherein A1 represents a spacer; X1 and X2 represent each independently a divalent nonmetal atom or a divalent nonmetal atomic group; and Y1 is oxygen or sulfur. The invention provides a process by which amines (particularly optically active amines) useful as intermediates of medicines, agricultural chemicals, or the like can be produced without special post-treatment in high yield at high optical purity; and phosphoric acid derivatives (particularly optically active phosphoric acid derivatives) useful in the production of the amines.
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Page/Page column 49-58
(2008/06/13)
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