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US 2003/0130488 A1Published application
Complex and method for producing epoxides by using the complex
AssigneeThe University of Tokyo
InventorsMasakatsu Shibasaki, Takashi Ohshima, Tetsuhiro Nemoto
Life of this patent
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Abstract
There is provided a complex having a specified chemical structure and an asymmetric catalyst using such a complex. Further, an epoxidation of amine or ketone is enantioselectively conducted by using such an asymmetric catalyst.
Claims12
A complex characterized by representing the following general formula (I):
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- wherein X is P or As, and M is a rare earth metal, and R1 is an alkoxy group or an alkyl peroxy group, and R2 is a residue of a phenyl derivative, a residue of a heterocyclic compound or an alkyl group, and each of R3 and R4 is a substituent on an aromatic ring.
A complex characterized by representing the following general formula (II):
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- wherein X is P or As, and M is a rare earth metal, and R2 is a residue of a phenyl derivative, a residue of a heterocyclic compound or an alkyl group, and each of R3 and R4 is a substituent on an aromatic ring.
A complex characterized by representing the following general formula (III):
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- wherein X is P or As, and M is a rare earth metal, and R2 is a residue of a phenyl derivative, a residue of a heterocyclic compound or an alkyl group, and each of R3 and R4 is a substituent on an aromatic ring.
Dependencies are inferred from the claim text.