Martin J. Stoermer, J. Pinhey
Mar 6, 1998
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Journal
Molecules
Abstract
The general part of the experimental section [1] has been presented elsewhere. To a stirred solution of (E)-2-methyl-5-phenyl-2-pentenoic acid (1.255 g, 6.6 mmol) in dry chloroform (15 ml) was added a solution of bromine (0.38 ml, 7.4 mmol) in dry chloroform (5 ml) dropwise. The mixture was stirred at room temperature for 6 hours and the chloroform solution was washed with sodium bisulfite solution (5%, 20 ml), brine (10 ml), dried (Na2SO4), filtered and evaporated under reduced pressure to yield 2,3-dibromo-2-methyl-5-phenyl-2-pentanoic acid (1.95 g, 84%) as yellow plates from chloroform/light petroleum.