JPS5488275A - Production of 2,2,6,6-tetramethyl-4-oxopiperidine - Google Patents

Production of 2,2,6,6-tetramethyl-4-oxopiperidine

Info

Publication number
JPS5488275A
JPS5488275A JP15421777A JP15421777A JPS5488275A JP S5488275 A JPS5488275 A JP S5488275A JP 15421777 A JP15421777 A JP 15421777A JP 15421777 A JP15421777 A JP 15421777A JP S5488275 A JPS5488275 A JP S5488275A
Authority
JP
Japan
Prior art keywords
acetone
catalyst
hydrazine
ammonia
oxopiperidine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15421777A
Other languages
Japanese (ja)
Other versions
JPS597701B2 (en
Inventor
Bunji Hirai
Naohiro Kubota
Yutaka Nakahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adeka Corp
Original Assignee
Adeka Argus Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adeka Argus Chemical Co Ltd filed Critical Adeka Argus Chemical Co Ltd
Priority to JP15421777A priority Critical patent/JPS597701B2/en
Priority to US05/971,858 priority patent/US4252958A/en
Publication of JPS5488275A publication Critical patent/JPS5488275A/en
Publication of JPS597701B2 publication Critical patent/JPS597701B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: High-purity title compound useful as synthetic intermediate for light stabilizers or medicines is prepared from acetone and/or its acidic condensates and ammonia using a specific catalyst in high yield.
CONSTITUTION: The reaction of acetone and/or acidic condensates of acetone such as diacetone alcohol, mesityl oixde with ammonia is carried out in the presence of a catalyst of a hydrazine and/or its hydrohalogenic acid salt of the formula (R1, R2, R3, R4 are alkyl, cycloalkyl, aryl, alkaryl, aralkyl and hydrogen respectively; X is Br, Cl, I; n is 1, 2) such as hydrazine or N-methylhydrazine to form the objective triacetoneamine. The amount of the catalyst used is more than 0.01, preferably 0.05W10.0 wt.% based on the acetone used.
COPYRIGHT: (C)1979,JPO&Japio
JP15421777A 1977-12-21 1977-12-21 Method for producing 2,2,6,6-tetramethyl-4-oxopiperidine Expired JPS597701B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP15421777A JPS597701B2 (en) 1977-12-21 1977-12-21 Method for producing 2,2,6,6-tetramethyl-4-oxopiperidine
US05/971,858 US4252958A (en) 1977-12-21 1978-12-21 Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15421777A JPS597701B2 (en) 1977-12-21 1977-12-21 Method for producing 2,2,6,6-tetramethyl-4-oxopiperidine

Publications (2)

Publication Number Publication Date
JPS5488275A true JPS5488275A (en) 1979-07-13
JPS597701B2 JPS597701B2 (en) 1984-02-20

Family

ID=15579395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15421777A Expired JPS597701B2 (en) 1977-12-21 1977-12-21 Method for producing 2,2,6,6-tetramethyl-4-oxopiperidine

Country Status (1)

Country Link
JP (1) JPS597701B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145571A (en) * 1988-11-28 1990-06-05 Mitsui Petrochem Ind Ltd Production of 2,2,6,6-tetramethyl-4-oxopiperidine
EP2706056A1 (en) 2012-09-07 2014-03-12 Evonik Industries AG Method for the preparation and treatment of a reaction mixture containing triacetonamine
EP2706045A1 (en) 2012-09-07 2014-03-12 Evonik Industries AG Method for the treatment of a waste water flow resulting from the processing of a reaction mixture containing triacetonamine
EP3663284A1 (en) 2018-12-07 2020-06-10 Evonik Operations GmbH Improved method for the preparation of triacetonamine
EP3750876A1 (en) 2019-06-13 2020-12-16 Evonik Operations GmbH Method for preparing triacetone amine, 2,2,4,6-tetramethylpiperidine and/or the salts of 2,2,4,6-tetramethylpiperidine
EP3907217A1 (en) 2020-05-07 2021-11-10 Evonik Operations GmbH Improved method for the preparation of triacetonamine
EP4279484A1 (en) 2022-05-17 2023-11-22 Sabo GmbH Improved method for the preparation of triacetonamine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145571A (en) * 1988-11-28 1990-06-05 Mitsui Petrochem Ind Ltd Production of 2,2,6,6-tetramethyl-4-oxopiperidine
EP2706056A1 (en) 2012-09-07 2014-03-12 Evonik Industries AG Method for the preparation and treatment of a reaction mixture containing triacetonamine
EP2706045A1 (en) 2012-09-07 2014-03-12 Evonik Industries AG Method for the treatment of a waste water flow resulting from the processing of a reaction mixture containing triacetonamine
DE102012215903A1 (en) 2012-09-07 2014-03-13 Evonik Industries Ag Process for the treatment of a wastewater stream, which results from the workup of a triacetonamine-containing reaction mixture
DE102012215900A1 (en) 2012-09-07 2014-05-15 Evonik Industries Ag Process for the preparation and processing of a triacetonamine-containing reaction mixture
EP3663284A1 (en) 2018-12-07 2020-06-10 Evonik Operations GmbH Improved method for the preparation of triacetonamine
US10807954B2 (en) 2018-12-07 2020-10-20 Evonik Operations Gmbh Method for preparing triacetone amine
EP3750876A1 (en) 2019-06-13 2020-12-16 Evonik Operations GmbH Method for preparing triacetone amine, 2,2,4,6-tetramethylpiperidine and/or the salts of 2,2,4,6-tetramethylpiperidine
EP3750877A1 (en) 2019-06-13 2020-12-16 Evonik Operations GmbH Method for preparing triacetone amine and 2,2,4,6-tetramethylpiperidine
EP3907217A1 (en) 2020-05-07 2021-11-10 Evonik Operations GmbH Improved method for the preparation of triacetonamine
US11731940B2 (en) 2020-05-07 2023-08-22 Evonik Operations Gmbh Process for preparing triacetonamine
EP4279484A1 (en) 2022-05-17 2023-11-22 Sabo GmbH Improved method for the preparation of triacetonamine

Also Published As

Publication number Publication date
JPS597701B2 (en) 1984-02-20

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