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Title:
NITROGEN-CONTAINING HETEROCYCLIC COMPOUND
Document Type and Number:
Japanese Patent JP03086867
Kind Code:
A
Abstract:

NEW MATERIAL:The nitrogen-containing heterocyclic compound of formula I or formula II (R1 is B, 1-18C alkyl, aryl, aralkyl or heterocyclic group; R2 is H or 1-6C alkyl; (n) is 0-3; when (n) is 1 and R1 is H or methyl, R2 is 1-6C alkyl) or its salt.

EXAMPLE: 2-Ethyl-1,4,5,6-tetrahydro-4-pyrimidinecarboxylic acid.

USE: Useful as a synthetic intermediate for pharmaceuticals, agricultural chemicals or organic electronic material such as liquid crystal.

PREPARATION: The compound of formula I or formula II can be produced by reacting a compound of formula III (X is C≡N, group of formula IV or formula V; R9 and R11 are 1-6C alkyl; R10 and R12 are H or 1-8C alkyl) with a compound of formula VI (R16 is H or 1-6C alkyl) (e.g. 2,3-diaminopropionic acid) in a solvent such as water or methanol.


Inventors:
Matsumura, Koichi
Mano, Mitsuhiko
Nishimura, Tatsuo
Sugiyama, Yoshio
Application Number:
JP1990000168795
Publication Date:
April 11, 1991
Filing Date:
June 26, 1990
Export Citation:
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Assignee:
TAKEDA CHEM IND LTD
International Classes:
C07D243/04; C07D233/90; C07D239/06; C07D245/02; C07D243/00; C07D233/00; C07D239/00; C07D245/00; (IPC1-7): C07D233/90; C07D239/06; C07D243/04; C07D245/02