New discoveries in chemical research and development in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 7170-01-6, name is 3-Methyl-1H-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. HPLC of Formula: C3H5N3
EXAMPLE 103 [4-(3-Methyl-1,2,4-triazol-1yl)-2-trifluoromethyl-phenyl](5H,11H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-methanone To a suspension of 60% sodium hydride in oil (0.3 g) in dimethylformamide (50 ml) was added dropwise 3-methyl-1,2,4-triazole (0.45 g). After hydrogen gas evolution ceased, 4-fluoro-2-trifluoromethyl-phenyl-(5H,11H-pyrrolo[2,1-c][1,4]-benzodiazepine-10-yl)-methanone (1.76 g) was added and the reaction mixture was heated in a sand bath at 110 C. for 18 hours. The mixture was poured onto ice, diluted with brine, and extracted with dichloromethane. The combined extracts were dried over anhydrous sodium sulfate and filtered through a short column of anhydrous sodium magnesium silicate. The solution was concentrated in vacuo and the residue was triturated with diethyl ether to give 0.81 g of the title compound as colorless crystals, m.p. 148-150 C., MS m/z: 438.2 (M+H)+, 875.8 (2M+H)+.
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Reference:
Patent; Wyeth; US6511974; (2003); B1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics