Synthesis of Hindered Amine Light Stabilizers from 2,2,6,6-Tetramethyl- 4-piperidinone
Synthesis of Hindered Amine Light Stabilizers from 2,2,6,6-Tetramethyl- 4-piperidinone
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DOI：
10.1002/chin.199218306
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发表时间：
1992-05
期刊：
影响因子：
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通讯作者：
S. Tanimoto;A. Toshimitsu;Y. Inoue
中科院分区：
文献类型：
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作者：
S. Tanimoto;A. Toshimitsu;Y. Inoue
综述了以2，2，6，6-四甲基哌啶为功能基的受阻胺光稳定剂的合成方法。这些HALS的大部分是通过将2，2，6，6-四甲基-4-哌啶酮初步转化为2，2，6，6-四甲基-4-哌啶醇、-哌啶胺或其N-烷基衍生物而合成的。并且，这些HALS的剩余部分通过2，2，6，6-四甲基-4-哌啶酮本身的化学改性而合成，而没有这种初始还原性改变。
This review involves the synthetic methods of hindered amine light stabilizers (HALS) having 2, 2, 6, 6-tetramethylpiperidine moieties as functional groups. The most parts of these HALS are synthesized via the initial alteration of 2, 2, 6, 6-tetramethyl-4-piperidinone into 2, 2, 6, 6-tetramethyl-4-piperidinol,-piperidinamine or its N-alkyl derivatives. And, the residual parts of these HALS are synthesized by the chemical modification of 2, 2, 6, 6-tetramethyl-4-piperidinone, itself, without such the initial reductive alteration.