摘要 |
Prodn. of an alpha -chloroalkyl aryl ketone of formula (I) comprises reacting an alkyl aryl ketone of formula (II) with SO2Cl2 in the presence of an aliphatic alcohol. n = 1-5; R1 = H, alkyl, alkoxy, aryl, aryloxy, acyloxy, acylamino, halogen or NO2; R2, R3 = H, alkyl or aryl. |