Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 956010-87-0, name is 3-(Trifluoromethyl)-1H-pyrazolo[3,4-b]pyridine. A new synthetic method of this compound is introduced below., Safety of 3-(Trifluoromethyl)-1H-pyrazolo[3,4-b]pyridine
To compound 12 (200 mg, 1.07 mmol) and N,N-dimethylhydrazinecarbothioamide (153 mg, 1.28 mmol) was added a 1N aqueous sodium hydroxide solution (4.0mL), and the mixture was heated in a microwave oven to 150 C for 10 min. The precipitate was collected by suction filtration and washed with water to yield 106 mg (40 %) of the title compound as a tan solid. 1H NMR (400 MHz, DMSO-d6): delta 3.18 (s, 6H), 7.36 (dd, J=8.0, 4.4Hz, 1H), 8.59 (dd, J=8.0, 1.5Hz, 1H), 8.63 (dd, J=4.4, 1.5Hz, 1H), 14.08 (br s, 1H). 13C NMR (125 MHz, DMSO-d6): delta 41.1, 111.4, 118.3, 130.8, 136.3, 150.0, 151.2, 152.4, 170.4. HRMS m/z calcd for C10H10N6S: 246.0688; found: 246.0680.
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Reference:
Article; Schirok, Hartmut; Griebenow, Nils; Fuerstner, Chantal; Dilmac, Alicia M.; Tetrahedron; vol. 71; 34; (2015); p. 5597 – 5601;,
Pyridine – Wikipedia,
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