Title:
PRODUCTION OF OPTICALLY ACTIVE 1,2-DIOL
Document Type and Number:
Japanese Patent JP3630002
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject compound in an easier way in high selectivity by making an asymmetric ligand having a specific element, a specific metal compound, a hydrogen donor, etc., act on a specific α-hydroxy ketone.
SOLUTION: This compound of formula III ((*) denotes an asymmetric carbon atom) is obtained by subjecting (A) an α-hydroxy ketone of formula I [R1 and R2 are each a (substituted) aromatic hydrocarbon, aromatic heterocyclic ring or aliphatic hydrocarbon; R1 and R2 may be bound to or condensed with each other to form a ring] (e.g. benzoin, acetoin) to (B) an asymmetric ligand having a group VB element, pref. a compound of formula II [R3 and R4 are each a (substituted) alkyl, aryl or the like; and R5 and R6 are each H, a lower alkyl, acyl or the like] (e.g. 1,2-diphenylethylenediamine), (C) a group VII metal compound {e.g. [RuCl2(p-cymene)]2), (D) a hydrogen donor (e.g. isopropanol), and (E) a base (e.g. lithium hydroxide).
Inventors:
Kazuya Okano
Hiroshi Iwane
Kunihiko Murata
Takao Ikariya
Hiroshi Iwane
Kunihiko Murata
Takao Ikariya
Application Number:
JP5579099A
Publication Date:
March 16, 2005
Filing Date:
March 03, 1999
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B01J31/22; C07B53/00; C07B61/00; C07C29/143; C07C33/26; (IPC1-7): C07C29/143; B01J31/22; C07C33/26
Domestic Patent References:
| JP2002501490A | ||||
| JP9157196A | ||||
| JP63316744A |
Foreign References:
| WO1998042643A1 |
Attorney, Agent or Firm:
Hasegawa Soji
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