Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-03-08
2005-03-08
Shameem, Golam M M (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C558S044000
Reexamination Certificate
active
06864372
ABSTRACT:
Sulfonic acid ester derivatives represented by the general formula (4) or (5) are produced by reacting an amino alcohol derivative represented by the general formula (1) or (2) with an organic sulfonyl halide represented by the general formula (3), in a mixed solvent composed of an aprotic organic solvent and water in the presence of a non-water-prohibiting inorganic base. This procedure can be carried out in a simple, easy, safe and economical manner while reducing the load on the environment.Wherein n represents an integer of 0 to 5, A represents a phenyl group, which may be substituted, R represents a methanesulfonyl, ethanesulfonyl, p-toluenesulfonyl or p-nitrobenzenesulfonyl group and X represents a chloride, bromine or iodine atom.
REFERENCES:
patent: 4537923 (1985-08-01), Slongo et al.
patent: 5246946 (1993-09-01), Oinuma et al.
patent: 5753697 (1998-05-01), Joyeux et al.
patent: 6087379 (2000-07-01), Asai et al.
patent: 61 207370 (1986-09-01), None
patent: 62 240651 (1987-10-01), None
patent: 1 143852 (1989-06-01), None
patent: 425946 (1992-05-01), None
patent: 9 202763 (1997-08-01), None
patent: WO 0194304 (2001-12-01), None
Yamada Koichiro, et al., Production of optically active 1-substituted-2-aminopropane, Oct. 21, 1987, JP 62-240651, Marked-up English abstract indicating mistakes identified by Applicants of subject application.
Kutsuki Hidetoshi, et al., Production of optically active 1-Benzyl-3-hydroxypyrrolidine, Jun. 6, 1989, JP01-143852, Marked-up English abstract indicating mistakes identified by Applicants of subject application.
Kano Fumihiko
Kunihiro Shigeki
Mori Natsuki
Yoshida Noritaka
Kaneka Corporation
Kenyon & Kenyon
Shameem Golam M M
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