JPS5459287A - Preparation of 2,2,6,6-tetramethylpiperidne derivative - Google Patents

Preparation of 2,2,6,6-tetramethylpiperidne derivative

Info

Publication number
JPS5459287A
JPS5459287A JP7473378A JP7473378A JPS5459287A JP S5459287 A JPS5459287 A JP S5459287A JP 7473378 A JP7473378 A JP 7473378A JP 7473378 A JP7473378 A JP 7473378A JP S5459287 A JPS5459287 A JP S5459287A
Authority
JP
Japan
Prior art keywords
formula
derivative
alkyl
preparation
reaction
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
JP7473378A
Other languages
Japanese (ja)
Other versions
JPS5544073B2 (en
Inventor
Keisuke Murayama
Masaharu Morimura
Takao Yoshioka
Shukumasa Toda
Eiko Mori
Hideo Horiuchi
Susumu Higashida
Katsuaki Matsui
Tomoyuki Kurumada
Noriyuki Oota
Hisao Osawa
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.)
Sankyo Co Ltd
Original Assignee
Sankyo 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 Sankyo Co Ltd filed Critical Sankyo Co Ltd
Priority to JP7473378A priority Critical patent/JPS5459287A/en
Publication of JPS5459287A publication Critical patent/JPS5459287A/en
Publication of JPS5544073B2 publication Critical patent/JPS5544073B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

NEW MATERIAL:2,2,6,6-Tetramethylpiperidine derivatives of formula I [R1 is H, alkyl, substed. alkyl, alkenyl; A is formula II (R2 is H, lower alkyl) or formula III].
EXAMPLE: 9-Aza-3-hydroxymethyl-3,8,8,10,10-pentamethyl-1,5-dioxaspiro[5,5] undecane.
USE: Stabilizers for synthetic high-molecular-weight materials and their synthetic intermediates, especially resistant to light and heat.
PREPARATION: The reaction between a triacetoneamine derivative of formula IV and a compound of formula V is conducted under reflux in the presence of an acidic catalyst such as benzenesulfonic acid or p-toluenesulfonic acid to prepare a compound of formula I. The reaction is preferably effected in a solvent; however, may be conducted in the absence of solvents
COPYRIGHT: (C)1979,JPO&Japio
JP7473378A 1978-06-20 1978-06-20 Preparation of 2,2,6,6-tetramethylpiperidne derivative Granted JPS5459287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7473378A JPS5459287A (en) 1978-06-20 1978-06-20 Preparation of 2,2,6,6-tetramethylpiperidne derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7473378A JPS5459287A (en) 1978-06-20 1978-06-20 Preparation of 2,2,6,6-tetramethylpiperidne derivative

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP10740872A Division JPS5420977B2 (en) 1972-10-26 1972-10-26

Publications (2)

Publication Number Publication Date
JPS5459287A true JPS5459287A (en) 1979-05-12
JPS5544073B2 JPS5544073B2 (en) 1980-11-10

Family

ID=13555719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7473378A Granted JPS5459287A (en) 1978-06-20 1978-06-20 Preparation of 2,2,6,6-tetramethylpiperidne derivative

Country Status (1)

Country Link
JP (1) JPS5459287A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116584A (en) * 1985-10-11 1987-05-28 アイシ−アイ・アメリカス・インコ−ポレ−テツド Light stabilizer for plastics based on malonic ester

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4953570A (en) * 1972-09-29 1974-05-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4953570A (en) * 1972-09-29 1974-05-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116584A (en) * 1985-10-11 1987-05-28 アイシ−アイ・アメリカス・インコ−ポレ−テツド Light stabilizer for plastics based on malonic ester

Also Published As

Publication number Publication date
JPS5544073B2 (en) 1980-11-10

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