Title:
【発明の名称】2,2,6,6―テトラメチル―4―ピペリジルアミンの製造方法
Document Type and Number:
Japanese Patent JP2660849
Kind Code:
B2
Abstract:
A process for the preparation of 2,2,6,6-tetramethyl-4-piperidylamine of the formula (I) in which n is 1, 2 or 3 and, if n is 1, R is C1-C18-alkyl, C5-C12-cycloalkyl, C7-C9-phenylalkyl, tetrahydrofurfuryl, C2-C4-alkyl which is monosubstituted by OH, C1-C8-alkyloxy, C1-C8-alkylamino, cyclohexylamino or di(C1-C8-alkyl)amino, or C2-C6-alkyl which is substituted by an -NH2 group, or R is 2,2,6,6-tetramethyl-4-piperidyl, and, if n is 2, R is C2-C12-alkylene, cyclohexylene, methylenedicyclohexylene, cyclohexylenedimethylene, xylylene or C4-C12-alkylene which is interrupted by 1, 2 or 3 oxygen atoms or 1 or 2 @NH or @N-CH3 groups, and, if n is 3, R is a group of the formula (II) in which x and y are identical or different and are integers from 2 to 6 and z is zero or 1, characterized in that 2,2,6,6-tetramethyl-4-piperidone is reacted with an amine of the formula (III> R-(NH2)n (III> in which R and n are as defined above, in the presence of hydrogen and of a hydrogenation catalyst, unsupported or supported on an inert material, in the absence of a solvent or in the presence of a quantity of water less than 10 % by weight relative to the reaction mixture.
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Inventors:
PAORO KASANDORINI
JIORUDANO RIGINI
GURACHIANO UINYARI
JIORUDANO RIGINI
GURACHIANO UINYARI
Application Number:
JP19197088A
Publication Date:
October 08, 1997
Filing Date:
July 30, 1988
Export Citation:
Assignee:
CHIBA GAIGII AG
International Classes:
C07D211/58; C08K5/34; C08K5/3432; C07D405/12; (IPC1-7): C07D211/58; C07D405/12
Domestic Patent References:
| JP6230757A | ||||
| JP56122352A |
Attorney, Agent or Firm:
Nobuo Kaida (1 person outside)