A solution of ( – ) – 1 – chloro–1– phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :
carbanion
carbene
carbocation
free radical
A solution of ( – ) – 1 – chloro–1– phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :
CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr
This reaction will be the fastest in