Related Products of 1111638-10-8, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1111638-10-8, name is 3-Chloro-5H-pyrrolo[2,3-b]pyrazine belongs to pyrazines compound, it is a common compound, a new synthetic route is introduced below.
(1) To a solution of 3-chloro-5H-pyrrolo[2,3-b]pyrazin (4.69 g) in N,N-dimethylformamide (70 mL) were added potassium hydroxide (6.85 g) and iodine (15.5 g) under ice-cooling, and the mixture was stirred at room temperature for 3 hours. Under ice-cooling, an aqueous sodium thiosulfate solution and ethyl acetate were added mm and after mixing, a solid is then filtrate to give 2 (3.96 g). The organic layer of the filtrate was separated, and the organic layer was sequentially washed with water and saturated saline, dried over sodium sulfate, and then concentrated under reduced pressure to give 3-chloro-7-iodo-5H-pyrrolo[2,3-b]pyrazin (4.29 g). APCI-MS m/z: 280/282 [M+H]+.
The synthetic route of 3-Chloro-5H-pyrrolo[2,3-b]pyrazine has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Shanghai Pharmaceuticals Holding CO., LTD.; MITSUBISHI TANABE PHARMA CORPORATION; Iijima, Toru; Takahashi, Yoichi; Hirai, Miki; Sugama, Hiroshi; Togashi, Yuko; Shen, Jingkang; Xia, Guangxin; Wan, Huixin; US2015/232459; (2015); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem