BISIMIDAZOLINE LIGAND AND CATALYST BY USING THE SAME
PROBLEM TO BE SOLVED: To design and synthesize a bisimidazoline ligand having flexibility for aiming at the diversity of the ligand, and especially in their molecular design, to realize a useful catalytic asymmetric reaction by putting an emphasis on the design of the ligands having a high freedom....
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Zusammenfassung: | PROBLEM TO BE SOLVED: To design and synthesize a bisimidazoline ligand having flexibility for aiming at the diversity of the ligand, and especially in their molecular design, to realize a useful catalytic asymmetric reaction by putting an emphasis on the design of the ligands having a high freedom. SOLUTION: This ligand is expressed by chemical formula (1) [wherein, X is any of N, C, S, P; R1, R2are each any of CH3, C2H5, -(CH2)4- and Ph; R3is H, CH3SO2, CH3C6H4SO2, C6H5SO2, CH3CO, C6H5CO, CH3, C2H5, CH2Ph and Ph; R4is any of H, CH3, C2H5, CH2Ph, Ph, CH3SO2, CH3C6H4SO2, C6H5SO2, CH3CO and C6H5CO; and provided that the Ph is an aromatic ring]. COPYRIGHT: (C)2007,JPO&INPIT |
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