14-Sep-21 News Introduction of a new synthetic route about 324-03-8

While the job of a research scientist varies, most chemistry careers in research are based in laboratories, where research is conducted by teams following scientific methods and standards. , Formula: C8H4FNO2

While the job of a research scientist varies, most chemistry careers in research are based in laboratories, where research is conducted by teams following scientific methods and standards. , Formula: C8H4FNO2

Add 11.33g NaNO3 and 100mL H2SO4 to a 500mL reaction flask.With stirring, the temperature of the ice bath was lowered to 0 C. Take 20.00g of compound 1-1,Dissolved in 120mL H2SO4,Slowly add the 1-1 H2SO4 solution to the reaction flask,After dripping, the reaction was held at 0 C for 1 hour, and then the reaction solution was poured into 1 L of ice water.After stirring for 0.5 hours, it was filtered and the filter cake was washed with water until neutral.The filter cake was washed with 80 mL of EtOH / H2O (7: 3) for 0.5 hours, filtered,The filter cake was dried to obtain 18.83 g of a crude product of 2-1.Yield: 74%.

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Reference:
Patent; Chinese Academy Of Sciences Shanghai Organic Chemistry Institute; Ma Dawei; Wang Kailiang; Xia Shanghua; Li Zheng; Zhao Jinlong; Li Ying; (82 pag.)CN110642874; (2020); A;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem