Analyzing the synthesis route of 91-19-0

As the paragraph descriping shows that 91-19-0 is playing an increasingly important role.

91-19-0, Quinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

91-19-0, At room temperature, will be 52 mg (0.4 mmol) quinoxaline, 414 mg (2.8 mmol) 2, 2 – ethoxy acetic acid, 182 mg (0.8 mmol) of the ammonium persulfate and 260 mg (0.8 mmol) Cs2CO3Dissolved in 6 ml in dimethyl sulfoxide, mix, nitrogen 30 min after the blue LEDs arranged under the lamp illumination reaction 20 h, adding 7.2 concentration is 3 M hydrochloric acid catalytic hydrolysis 20 h, using sodium bicarbonate adjusting pH to neutral, extraction, the combined organic phase, by the rotary concentrate by the Rotavapor after turns on lathe does, then to the volume ratio of 15:1 petroleum ether: ethyl acetate mixed solution of eluant, performing silica gel column chromatography purification and separation, to obtain the corresponding formylation heterocyclic derivatives, its reaction is Product purity is 99%, and the yield is 63%.

As the paragraph descriping shows that 91-19-0 is playing an increasingly important role.

Reference£º
Patent; Harbin Institute of Technology; Yang Chao; Jia Wei; Gou Baoquan; (9 pag.)CN108640807; (2018); A;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider