Electric Literature of 53087-13-1, These common heterocyclic compound, 53087-13-1, name is 1-(Benzyloxy)-3-bromobenzene, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Magnesium (172.4 mg; made by Wako Pure Chemical Industries Co., Ltd.), dehydrated THF (5 mL), dibromoethane (20 muL; made by Tokyo Chemical Industry Co., Ltd.), and 1-(benzyloxy)-3-bromobenzene-THF solution [15 mL; solution prepared by dissolving 1-(benzyloxy)-3-bromobenzene (1.3146 g; made by Tokyo Chemical Industry Co., Ltd.) in dehydrated THF (15 mL)] were added and stirred for one hour by reflux in a nitrogen atmosphere. The reaction solution was cooled to – 78C and bubbled for 20 minutes by SO2 gas. The reaction solution was brought to room temperature, bubbled for 10 minutes with nitrogen gas, and filtered. The filtrate was concentrated, and the residue obtained was dissolved in CH2Cl2 (25 mL), then cooled to 0C. SO2Cl2 (0.6 mL; made by Wako Pure Chemical Industries Co., Ltd.) was added to this solution and stirred overnight while warming to room temperature. Water was added to the reaction solution. After filtering by Celite, the filtrate was washed with brine. The organic layer was dried by anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The title compound was obtained as a crude product (1.3811 g). This crude product was used in the next reaction without any particular purification.
The synthetic route of 53087-13-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Asahi Kasei Pharma Corporation; EP2484668; (2012); A1;,
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