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. 54314-84-0, name is ((3-Bromopropoxy)methyl)benzene, A new synthetic method of this compound is introduced below., name: ((3-Bromopropoxy)methyl)benzene
Compound 3F: 1 -[3-(Benzyloxy)propyl]-4-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 H- pyrazoleA mixture of 4-(4,4,5,5-tetramethyl[1 ,3,2]dioxaborolan-2-yl)-1 /-/-pyrazole (5.0 g, 26 mmol), potassium carbonate (4.27 g, 30.9 mmol) and 1-bromo-3-benzyloxypropane (6.20 g, 27.0 mmol) in DMF (20 mL) was stirred at 80 °C overnight, quenched with water (20 mL) and extracted with EtOAc (100 mL). The organic layer was washed with water (2 x 30 mL), brine (30 mL), dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (ISCO system: EtOAc/Heptane = 30- 70percent) to afford 7.67 g of the title compound as a light-yellow oil (87percent). 1H NMR (CDCI3, 400 MHz): delta = 7.80 (s, 1 H), 7.66 (s, 1 H), 7.30-7.36 (m, 5H), 4.48 (s, 2H), 4.28 (t, J = 6.8 Hz, 2H), 3.43 (t, J = 5.8 Hz, 2H), 2.17 (m, 2H), 1.33 (s, 12H). MS (ES+): m/z = 343.36 [MH+]. HPLC: iR = 4.20 min ( ZQ3: polar_5 min).
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; OSI PHARMACEUTICALS, LLC; CREW, Andrew, P.; DONG, Hanqing; FERRARO, Caterina; SHERMAN, Dan; SIU, Kam, W.; WO2012/74951; (2012); A1;,
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