37830-90-3,Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like C5H6O3,introducing its new discovery.
Example 12: (5-Methyl-2-oxo-l,3-dioxol-4-yl)methyl 4-[(4-methoxyphenyl)amino]-6- (methylcarbamoy^quinoline-S-carboxylate. a) Preparation of the intermed 4-bromomethyl-5-methyl-2-oxo-l,3-dioxolene; To a solution of 4,5-dimethyl-l,3-dioxol-2-one (342 mg, 3.0 mmol) in carbon tetrachloride (10 mL) was added azobisisobutyronitrile (AIBN, 9.8 mg, 0.06 mmol) and iV-bromosuccinimide NBS (580 mg, 3.3 mmol). The reaction mixture was heated in the dark in a stem block at 78 C for 20 minutes. The mixture was cooled and evaporated almost into dryness. The mixture was filtered and the residue was evaporated to give a light yellow solid, which contained 20 percent starting material Yield: 450 mg (58percent). The mixture was used in the next step without further purifi- cation., 37830-90-3
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Reference£º
Patent; CLANOTECH AB; MALM, Johan; RINGOM, Rune; CALDIROLA, Patrizia; WESTMAN, Jacob; WO2010/133669; (2010); A1;,
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