ChemicalBook CAS DataBase List Quinacridone

Quinacridone synthesis

5synthesis methods

Product Name:Quinacridone
CAS Number:1047-16-1
Molecular formula:C20H12N2O2
Molecular Weight:312.32

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1047-16-1
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Yield:1047-16-1 99.43%

Reaction Conditions:

with polyphosphoric acid PPA at 125; for 6 h;Dieckmann Condensation;

Steps:

1.3 3, closed-loop reaction:
In a 1 L three-necked flask equipped with an electrically heated magnetic stirrer, a thermocouple and condenser (distillation unit) were installed. , In three 84.5 g of polyphosphoric acid PPA (0.25 mol) was added to the flask, and after 3 hours at 100 ° C, 17.4 g of 2,5-diphenylamine Based on terephthalic acid (0.05mol), add the material, the reaction at 125 3h, stop the reaction. Washed with water to obtain the crude product quinacridone 15.82g, a yield of 99.43%

References:

Zhejiang Jiangshan Chemical Co., Ltd.;Xu Xiaohang;Lv Rong;Wang Zongbo;Han Mengmeng;Dou Herui CN106831763, 2017, A Location in patent:Paragraph 0029

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