3 -(1 - chloro - 2,2 - dimethylpropylidene) indolin - 2 - one was synthesized through Sonogashira eoupling and Carbonylative annulation reaction used 2 - iodoaniline and 3,3 - dimethylbut - 1 - yne as the initial materials. The method had the advantages of fewer steps and good selectivity. The yield of 3 -(1 - chloro -2,2 -dimethylpropylidene) indolin- 2 -one was up to 64.7%. The ...