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- W2376960403 abstract "Chiral 2 - amino - 2' - hydroxy - 1,1' - binaphthyl (NOBIN) was obtained by resolution of racemic NOBIN, which was prepared by catalytic cross - coupling of 2 - naphthol and 2 - amino -naphthylene. Two structurally novel chiral P, N ligands, S-( + )-2-(2- pyridinyl - carboxamido) - 2' -diphenylphosphino -1,1'- binaphthyl(1a)and S -( + )-2-(6- methyl - 2 - pyridinylcarboxamido) -2' - diphenyl-phosphino -1,1'- binaphthyl (1b) , were synthesized in six steps from the chiral framework of S - NOBIN. The enantioselective 1,4- conjugate addition of diethylzinc to 2 - cyclohexen - 1 - one catalyzed by Cu( I )/1 complexes was performed. 3 - ethylcyclohexanone(13) of up to 92 % e. e. was obtained with 1b as the ligand under the optimum conditions." @default.
- W2376960403 created "2016-06-24" @default.
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- W2376960403 date "2000-01-01" @default.
- W2376960403 modified "2023-09-25" @default.
- W2376960403 title "Synthesis of Novel P,N Ligands and Their Application in Enantioselective 1,4-Conjugate Addition" @default.
- W2376960403 hasPublicationYear "2000" @default.
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