Some common heterocyclic compound, 53087-13-1, name is 1-(Benzyloxy)-3-bromobenzene, molecular formula is C13H11BrO, 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. name: 1-(Benzyloxy)-3-bromobenzene
Preparation 3 3-Benzyloxyphenyl boronic acid A solution of 3-benzyloxy-bromobenzene 10 g (38 mmol) in 150 mL of anhydrous THF was cooled to -70C under a nitrogen atmosphere. 28.5 mL of n-butyl lithium (1.6 M in hexanes) was added dropwise to the solution. The reaction mixture was stirred for 30 minutes, then tri-isopropyl borate 10.6 mL (45.6 mmol) was added. The reaction mixture was allowed to warm to ambient temperature over a two hour period. The reaction was quenched by the addition of 200 mL of 1 N HCl andthe reaction mixture was stirred for an additional hour. The slurry was extracted twice with EtOAc and the organic layer separated and combined. The EtOAc solution was washed twice with brine, dried with Na2SO4, and evaporated to a yellow oil. The product was crystallized from ether-hexane. This yielded 4.85 g of the title compound as white solid. PMR: Consistent with the proposed structure.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 53087-13-1, its application will become more common.
Reference:
Patent; ELI LILLY AND COMPANY; EP838461; (1998); A2;,
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