Title:
PROCESS FOR THE PRODUCTION OF NITROGEN COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2001/092207
Kind Code:
A1
Abstract:
A process of reacting a compound having an NH group with a thiocyanate, a cyanamide, a nitrile, or an ester in the presence of a silylating agent to thereby obtain the corresponding nitrogen-containing addition or substitution product. This process enables direct and efficient synthesis of nitrogen compounds such as isothioureas, guanidines, amidines, and amides, and is universally applicable and suitable for mass production.
Inventors:
EMURA TAKASHI (JP)
HANEISHI TSUYOSHI (JP)
HANEISHI TSUYOSHI (JP)
Application Number:
PCT/JP2001/004504
Publication Date:
December 06, 2001
Filing Date:
May 29, 2001
Export Citation:
Assignee:
CHUGAI PHARMACEUTICAL CO LTD (JP)
EMURA TAKASHI (JP)
HANEISHI TSUYOSHI (JP)
EMURA TAKASHI (JP)
HANEISHI TSUYOSHI (JP)
International Classes:
C07C231/02; C07C257/14; C07C257/18; C07C277/02; C07C335/32; C07C233/07; C07C279/18; (IPC1-7): C07C231/02; C07C233/07; C07C257/14; C07C277/02; C07C279/18; C07C335/32; C07D295/12
Foreign References:
| GB1445257A | 1976-08-11 |
Other References:
J.I. OGONOR: "Preparation of N-substituted amidines", TETRAHEDRON, vol. 37, no. 16, 1981, pages 2909 - 2910, XP002945442
Attorney, Agent or Firm:
Shamoto, Ichio (New Ohtemachi Bldg. 2-1 Ohtemachi 2-chome Chiyoda-ku, Tokyo, JP)
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