Title:
OPTICALLY ACTIVE COBALT (II) OR (III) COMPLEXES, PROCESS FOR THE PREPARATION THEREOF AND INTERMEDIATES THEREFOR
Document Type and Number:
WIPO Patent Application WO/2002/038535
Kind Code:
A1
Abstract:
Optically active cobalt (II) complexes represented by the general formulae (1) and (1'): (1) (1') wherein R?1¿ and R?2¿ are each independently hydrogen, linear or branched alkyl, linear or branched alkenyl, aryl, acyl, alkoxycarbonyl, aryloxycarbonyl, or aralkyloxycarbonyl, these groups being each optionally substituted; or alternatively R?1¿ and R?2¿ together with the carbon atoms to which R?1¿ and R?2¿ are bonded respectively may form a ring.
Inventors:
NAGATA TAKUSHI (JP)
YAMADA TOHRU (JP)
YAMADA TOHRU (JP)
Application Number:
PCT/JP2001/003697
Publication Date:
May 16, 2002
Filing Date:
April 27, 2001
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
NAGATA TAKUSHI (JP)
YAMADA TOHRU (JP)
NAGATA TAKUSHI (JP)
YAMADA TOHRU (JP)
International Classes:
B01J31/22; B01J31/18; C07B41/02; C07B53/00; C07B61/00; C07C29/145; C07C33/26; C07C67/343; C07C69/753; C07C251/12; C07C251/16; C07F15/06; (IPC1-7): C07C251/12; B01J31/22; C07B41/02; C07B53/00; C07C29/145; C07C33/26; C07C67/343; C07C69/753; C07C251/16; C07F15/06
Foreign References:
| EP0901996A1 | 1999-03-17 | |||
| US5756790A | 1998-05-26 |
Other References:
YUHKI OHTSUKA ET AL.: "Convenient preparation of optically pure 1,3-diaryl-1,3-propanediols", SYNLETT, no. 4, 2000, pages 535 - 537, XP002942919
TAKETO IKENO ET AL.: "Highly enantioselective cyclopropanation of styrenes with diazoacetates catalyzed by optically active .beta.-ketoiminato cobalt(II) complexes", CHEM. LETT., no. 12, 1999, pages 1345 - 1346, XP002942920
TAKUSHI NAGATA ET AL.: "Enantioselective reduction of ketones with sodium borohydride, catalyzed by optically active (.beta.-oxoaldiminato)cobalt(II) complexes", ANGEW. CHEM., INT. ED. ENGL., vol. 34, no. 19, 1995, pages 2145 - 2147, XP002942921
FRITZ VOEGTLE ET AL.: "The diaza-Cope rearrangement", CHEM. BER., vol. 109, no. 1, 1987, pages 1 - 40, XP002942922
TAKETO IKENO ET AL.: "Highly enantioselective cyclopropanation of styrenes with diazoacetates catalyzed by optically active .beta.-ketoiminato cobalt(II) complexes", CHEM. LETT., no. 12, 1999, pages 1345 - 1346, XP002942920
TAKUSHI NAGATA ET AL.: "Enantioselective reduction of ketones with sodium borohydride, catalyzed by optically active (.beta.-oxoaldiminato)cobalt(II) complexes", ANGEW. CHEM., INT. ED. ENGL., vol. 34, no. 19, 1995, pages 2145 - 2147, XP002942921
FRITZ VOEGTLE ET AL.: "The diaza-Cope rearrangement", CHEM. BER., vol. 109, no. 1, 1987, pages 1 - 40, XP002942922
Attorney, Agent or Firm:
Kaneda, Nobuyuki (16th Kowa Building 9-20 Akasaka 1-chome Minato-ku, Tokyo, JP)
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