Answer Happy

Treatment of the following stereoisomer of 1 -bromo-1,2-diphenylpropane with sodium ethoxide in ethanol gives a single stereoisomer of 1,2 -diphenylpropene. CH3​CH2​OHCH3​CH2​O−Na+​ Draw the E2 elimination product of the reaction. Take into account that the starting stereochemistry affects the resulting double bond stereochemistry. - Consider E/Z stereochemistry of alkenes. - Do not show stereochemistry in other cases. - You do not have to explicitly draw H atoms. - In cases where there is more than one answer, just draw one.