摘要：In the derivation of dl-1-phenyl-2-acylamino-1, 3-dibromopropanes to dl-phenyl-serinols, the stepwise displacement of bromine atoms by hydroxyl groups was examined in connection with earlier conclusions. It was found that the proximity of acyl group to the displacement centre favored the internal Sn2 and that its distance from the neighborhood favored Sn1 in the solvolytic condition.
