THE PROBLEM OF DEHYDROHALOHENATION OF (S)-1-Bromo-1,2-diphenylethane with a strong base
(S)-1-Bromo-1,2-diphenylethane reacts with a strong
base to produce a mixture of E and Z isomers .
These are formed by two conformations in which
H and Br are both in anti position .Only one
predominates.Product of the conformation
that is more stable.
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