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ChemicalBook CAS DataBase List 3-Iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine
151266-23-8

3-Iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine synthesis

4synthesis methods
A solution of 3H-pyrazolo[3,4-d]pyrimidin-4-amine (10 g, 0.074 mol) and n-iodo-succinamide (25 g, 0.111 mol) in DMF (80 mL) was heated to 80° C. overnight under an argon atmosphere. The resulting solid was filtered and rinsed with cold EtOH. The product was dried in vacuo overnight to yield 3-Iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine (24 g, 100 per cent yield).
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Yield:151266-23-8 86%

Reaction Conditions:

in N,N-dimethyl-formamide at 80; for 12 h;

Steps:

1.1 synthesis of 3-iodo-1H-Pyrazolo[3, 4-d] pyrimidine-4-amine
Pyrazolo [3,4-d] pyrimidin-4-amine (15.0 g, 111.1 mmol) was dissolved in DMF (150 mL) N-iodosuccinimide (37.5 g, 166. 6 mmol) was slowly added to the reaction mixture, and the reaction was stirred at 80 ° C for 12 h. stopWater (40 mL) was added to the reaction mixture, and the mixture was suction filtered. The solid was washed with water (80 mL), ethanol (60 mL) and dried to give to a yellow solid (24. 9 g, 86%).

References:

Guangdong HEC Pharmaceutical Co., Ltd;LIU, BING;BAI, SHUN;ZHANG, YINGJUN;ZHENG, CHANGCHUN;YANG, TIPING;ZHOU, YOUBAI CN105399756, 2016, A Location in patent:Paragraph 0155; 0165-0166

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