METHOD FOR PREVENTING DECREASE IN OPTICAL PURITY

Title:

METHOD FOR PREVENTING DECREASE IN OPTICAL PURITY

Document Type and Number:

WIPO Patent Application WO/2013/065189

Kind Code:

A1

Abstract:

The present invention provides a method for producing a reduction reaction product, wherein recovery of the reaction solvent and/or distillation is carried out after adding a nitrogen-containing compound into a reaction liquid of a reduction reaction that has been conducted using a transition metal complex. The present invention is capable of suppressing decrease in the optical purity of the reduction reaction product due to the transition metal complex used as a catalyst.

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Inventors:

NARA HIDEKI (JP)
HASEGAWA YOSHIKI (JP)

Application Number:

PCT/JP2011/075491

Publication Date:

May 10, 2013

Filing Date:

November 04, 2011

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Assignee:

TAKASAGO PERFUMERY CO LTD (JP)
NARA HIDEKI (JP)
HASEGAWA YOSHIKI (JP)

International Classes:

C07C29/74; C07C33/22; C07C253/32; C07C255/50; C07B53/00; C07B61/00

Domestic Patent References:

WO2010140636A1	2010-12-09
WO2005092830A1	2005-10-06

Foreign References:

JP2009001545A

2009-01-08

Other References:

"Jikken Kagaku Kouza 19", MARUZEN COMPANY, LIMITED, pages: 122
ASYMMETRIC CATALYSIS IN ORGANIC SYNTHESIS, pages 16 - 94
J. AM. CHEM. SOC., vol. 119, 1997, pages 8378
J. AM. CHEM. SOC., vol. 118, 1996, pages 2521
See also references of EP 2774908A4

Attorney, Agent or Firm:

TSUJII Koichi et al. (JP)
辻居 Koichi (JP)

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Claims:

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