P. E. Verkade, K. D. Vries, B. M. Wepster
Sep 2, 2010
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Journal
Recueil des Travaux Chimiques des Pays-Bas
Abstract
Optically active 1-phenylethyl chloride or bromide when treated with a solution of lithium, sodium, or potassium in liquid ammonia yields optically active 2,3-diphenylbutane. It is concluded that the formation of the “biaralkyl” proceeds via carbanions. The absolute configurations of (+)- and (-)-2,3-diphenylbutane are deduced.