Optically active 1-aryl-2-fluoro-substituted ethylamine and...

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C564S271000, C564S272000, C564S366000

Reexamination Certificate

active

07459586

ABSTRACT:
The present invention relates to a method of producing an optically active 1-aryl-2-fluoro-substituted ethylamine compound of the formula [2] or a salt thereof by hydrogenolysis of an optically active secondary amine compound of the formula [1] or a salt thereof in the presence of a transition metal catalyst of Group VIII[Chem. 59][where Ar represents an aryl group; n represents an integer of 1 or 2; and * represents an asymmetric carbon][Chem. 60][where Ar represents an aryl group; n represents an integer of 1 or 2; and * represents an asymmetric carbon].

REFERENCES:
patent: 2002/0119992 (2002-08-01), Selnick et al.
patent: WO 02/50056 (2002-06-01), None
European Search Report dated May 7, 2007 (Three (3) pages).
Kanai M. et al., “Highly Regioselective Hydrogenolysis of Bis (alpha-methylbenzyl)amine Derivatives Affected by the Trifluoromethyl Substituent on the Aromatic Ring”, vol. 5, No. 7, Apr. 3, 2003, XP-002430269, (pp. 1007-1010).
Gosselin F. et al., “Unprecedented Catalytic Asymmetric Reduction of N-H Imines”, vol. 7, No. 2, Jan. 20, 2005, XP-002430270, (pp. 355-358).
International Search Report dated May 31, 2005 with an English translation of the pertinent portions (Five (5) pages).
Torok, B. et al., “Synthesis of Chiral Trifluoromethylated Amines by Palladium-Catalyzed Diastereoselective Hydrogenation-Hydrogenolysis Approach”, Advanced Synthesis & Catalysis, 2003 vol. 345, No. 1+2, (pp. 165-168).
Pirkle, W.H. et al., “Design of Chiral Derivatizing Agents for the Chromatographic Resolution of Optical Isomers. Asymmetric Synthesis of Some Chiral Fluoroalkylated Amines”, Journal of Organic Chemistry, 1977 vol. 42, No. 14, (pp. 2436-2439).
Kato, K. et al., “Enzymatic resolution of 2,2,2-trifluoro-1-arylethylamine derivatives by Pseudomonas fluorescens lipase in organic solvents”, Journal of Molecular Catalysis B: Enzymatic, 2004, vol. 30, (pp. 61-68).
Blaauw, R. H. et al., “Intramolecular Photochemical Dioxenone-Alkene [2+2] Cycloadditions as an Approach to the Bicyclo[2.1.1]hexane Moiety of Solanoeclepin A”, Journal of Organic Chemistry, 2001, vol. 66, (pp. 233-242).
Prakash, G. K. S. et al., “Facile preparation of di- and monofluoromethyl ketones from trifluoromethyl ketones via fluorinated enol silyl ethers”, Journal of Fluorine Chemistry, 2001, vol. 112, (pp. 357-362).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optically active 1-aryl-2-fluoro-substituted ethylamine and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optically active 1-aryl-2-fluoro-substituted ethylamine and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically active 1-aryl-2-fluoro-substituted ethylamine and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4050388

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.