1. We have explored a formal [3+2] strategy that is synthetically useful for constructing 3,4-disubstituted succinimides with ethyl bromoacetate derivatives or methyl glyoxylate in one step. 2. We reported a new approach to (E)-£]-aryl-£\,£]-unsaturated amides. Instead of using aldehydes, phosphorus, silicon containing compounds and metal catalysts for the synthesis of double bonds, £\-sulfonyl acetamide and various benzyl bromides were used as starting materials