Adding a certain compound to certain chemical reactions, such as: 1459-93-4, name is Dimethyl isophthalate, belongs to esters-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 1459-93-4, name: Dimethyl isophthalate
6.0 kg of dimethyl isophthalate, 21.0 kg of 2,2,6,6-tetramethyl-4-aminopiperidine was added to a 50 liter reactorIn the reactor all the materials off the entrance. The reaction was carried out at 190 C for 2 hours and then at 230 C for 5 hours. The temperature was lowered to below 180 C, and excess 2,2,6,6-tetramethyl-4-aminopiperidine was recovered by vacuum distillation under a vacuum pump. Then use water to generateN, N’-bis (2,2,6,6-tetramethyl-4-piperidinyl) -1,3-benzenedicarboxamide, filtered and dried to give 12.8 kg of acicular white crystalline product , Yield 93.5%.
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Reference:
Patent; Xiangtan University; Luo Zhiqiang; Zhang Lingjun; Zhang Jing; Ji Yongsheng; Ji Changfu; Zeng Yang; Liu Mengyan; Zhou Ji; Liu Minna; Wang Zhe; (7 pag.)CN106905225; (2017); A;,
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