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Preparation of 3,3'-Dimethyl-9,9'-Bianthracene with 2-Methylanthraquinone
In terms of organic synthesis, we have researched and developed a synthetic method of 3,3'-dimethyl-9,9'-bianthracene, which includes the following steps:
(1) Add 2-methylanthraquinone, acetic acid, tin granules and 37% (mass) concentrated hydrochloric acid to the reaction flask, stir and react at 130°C for 1~3h, cool, pour the reaction solution into water, filter and weigh Crystallize to obtain 3-methylanthrone solid;
(2) Add the 3-methylanthrone obtained in step (1), acetic acid, metal particles, and 37% (mass) concentrated hydrochloric acid into the reaction flask, 130. The reaction was stirred at ℃ for 1~3h, and 3,3'-dimethyl-9,9'-bianthracene was obtained by cooling, filtering and recrystallization. The metal particles are zinc particles or tin particles, and the molar ratio of 3-methylanthrone to metal is 1:3 to 1:10.
The invention is mainly used for the preparation of 3,3'-dimethyl-9,9'-bianthracene with 2-Methylanthraquinone.
(1) Add 2-methylanthraquinone, acetic acid, tin granules and 37% (mass) concentrated hydrochloric acid to the reaction flask, stir and react at 130°C for 1~3h, cool, pour the reaction solution into water, filter and weigh Crystallize to obtain 3-methylanthrone solid;
(2) Add the 3-methylanthrone obtained in step (1), acetic acid, metal particles, and 37% (mass) concentrated hydrochloric acid into the reaction flask, 130. The reaction was stirred at ℃ for 1~3h, and 3,3'-dimethyl-9,9'-bianthracene was obtained by cooling, filtering and recrystallization. The metal particles are zinc particles or tin particles, and the molar ratio of 3-methylanthrone to metal is 1:3 to 1:10.
The invention is mainly used for the preparation of 3,3'-dimethyl-9,9'-bianthracene with 2-Methylanthraquinone.
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