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Patent Searching and Data


Title:
ジルコニウム触媒によるβ-ジカルボニルのヒドロキシル化
Document Type and Number:
Japanese Patent JP2004535443
Kind Code:
A
Abstract:
The present invention pertains to a process for preparing a compound of Formula I that is achiral, racemic or enantiomerically enriched at the hydroxylation center indicated by * comprising contacting a compound of Formula II with an oxidant selected from oxygen, hydrogen peroxide, peracids or alkyl hydroperoxides in the presence of a zirconium complex, wherein R1, R2 and R3 are as defined in the disclosure. This invention also pertains to zirconium complexes useful in this procedure comprising zirconium and a ligand of Formula III or its enantiomer wherein J, R6 and n are as defined in the disclosure. This invention further pertains to a compound of Formula III or its enantiomer.

Inventors:
Albert Loren, Casalnuovo
Application Number:
JP2003508481A
Publication Date:
November 25, 2004
Filing Date:
June 06, 2002
Export Citation:
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Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
B01J31/22; C07B53/00; C07B61/00; C07C45/64; C07C49/185; C07C49/413; C07C49/523; C07C49/747; C07C49/757; C07C49/80; C07C67/31; C07C69/738; C07C215/50; C07D209/12; C07D241/12; C07D273/04; C07D307/33; C07D307/34; C07D307/60; C07D307/83; C07D309/30; C07D309/32; C07D317/28; C07D311/20; C07D311/56; C07D311/86; C07D313/04; C07D313/08; C07D317/32; C07D405/06; C07D405/12; C07F7/00; B01J21/06; (IPC1-7): C07C67/31; B01J31/22; C07C69/738; C07C215/50; C07D241/12; C07D273/04; C07D307/33; C07D307/60; C07D307/83; C07D309/30; C07D309/32; C07D311/20; C07D311/56; C07D311/86; C07D313/04; C07D313/08; C07D317/28; C07D317/32; C07D405/06; C07F7/00
Attorney, Agent or Firm:
Heikichi Odashima