Related Products of 35265-83-9, In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 35265-83-9 as follows.
Reference Example 31 4-Butylamino-2-chloro-7-methylthieno[3,2-d]pyrimidine In DMF was dissolved 700 mg (3.2 mmol) of 2,4-dichloro-7-methylthieno[3,2-d]pyrimidine, and then an aqueous solution of 548 mg (7.5 mmol) of butylamine was added dropwise to the resulting solution under ice cooling over 5 minutes. The reaction mixture was stirred at 0C. for one hour and then allowed to resume room temperature, followed by stirring for one hour. After completion of the reaction, ice water was added to the reaction mixture, followed by extraction with ethyl acetate (50 ml*3). After the organic layer was washed successively with 1N hydrochloric acid, water and brine and dried over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified by silica gel chromatography (eluent: ethyl acetate-hexane={fraction (1/10)}) to give 698 mg (yield: 85.4%) of the title compound. NMR (delta, CDCl3): 0.98 (3H, t, J=7.3 Hz), 1.41-1.50 (2H, m), 1.64-1.72 (2H, m), 2.42 (3H, s), 3.64-3.69 (2H, m), 4.99 (1H, br), 7.35 (1H, s)
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,35265-83-9, its application will become more common.
Reference:
Patent; NAKASHIMA, YOSHIHARU; FUJITA, TAKASHI; HIZUKA, MICHIYO; IKAWA, HIROSHI; HIRUMA, TORU; US2001/6969; (2001); A1;,
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