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ChemicalBook CAS DataBase List 4-Benzyloxybromobenzene
6793-92-6

4-Benzyloxybromobenzene synthesis

13synthesis methods

The synthesis of 4-benzyloxybromobenzene was as follows: p-bromophenol, benzyl chloride, anhydrous potassium carbonate and potassium iodide were placed in a 250 ml three-necked flask and 170 ml of anhydrous ethanol was added. The reaction was heated an

-

Yield: 100%

Reaction Conditions:

with potassium carbonate in acetonitrile for 6 h;

Steps:

34.A
Intermediate 34; (+/-)-3-(4-Hydroxy-phenyl)-2-methyl-propionic acid methyl ester; Step A; 4-Bromophenol (3.55 g, 20.5 mmol) is dissolved in acetonitrile (50 mL). Powdered potassium carbonate (3.86 g, 27.9 mmol) is added while stirring, followed by dropwise addition of benzyl bromide (2.4 mL, 20.2 mmol). The mixture is vigorously stirred under nitrogen for 6 h. Filtration and concentration yielded 4-benzyloxy-bromobenzene 32 (5.52 g, quant.) as an oil that slowly solidified: 1H-NMR (400 MHz, CDCl3) δ = 7.37, (m, 7H), 6.87 (m, 2H), 5.07 (s, 2H).

References:

IRM LLC WO2007/56497, 2007, A1 Location in patent:Page/Page column 32

4-Benzyloxybromobenzene Related Search:

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