Synthesis of Hindered Amine Light Stabilizer 430

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Abstract

At present, the synthesis of hindered amine light stabilizer 430 is generally used hydrogen peroxide as oxidant. Consequently, there are more risks in the synthesis. To solve this problem, we explored the conditions of the synthesis of hindered amine light stabilizer 430 with t-BuOOH (tert-butyl peroxide) as oxidant, designed two synthetic routes, and studied the effects of solvents, temperature, catalysts on the reaction. The results show that the target molecule can be obtained in one pot with t-BuOOH as oxidant, UV-3853 as reactant, MoO₃ as catalyst, and the yield can be up to 76%. In another route, after alkoxylation and transesterification, we can obtain the target molecule with 2,2,6,6-tetramethyl-piperidinol as reactant in 63% yield. These two synthetic methods reduce the danger of the experiments, and provide the potential of industrial application.

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	Articles by authors
	Ma Shumin
	Su Yuhan
	Hou Jingru
	Chen Ligong
	Yan Xilong
	Li Yang

Keywords： hindered amine light stabilizer； assistant 430； tert-butyl peroxide； transesterification

Received 2016-11-25;

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Cite this article:

Ma Shumin, Su Yuhan, Hou Jingru, Chen Ligong, Yan Xilong, Li Yang.Synthesis of Hindered Amine Light Stabilizer 430[J] Chemcial Industry and Engineering, 2018,V35(1): 29-33

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