(E)-(2-(phenylsulfonyl)vinyl)benzene and derivative thereof, and synthesis method of (E)-(2-(phenylsulfonyl)vinyl)benzene and derivative thereof

The invention relates to a technical scheme that under the joint action of alkaline and N,N-dimethyl formamide, (E)-(2-(phenylsulfonyl)vinyl)benzene and a derivative thereof are efficiently synthesized from multiple components of benzyl compounds and paraformaldehyde in an environment-friendly mode through a one-pot method without transition metal catalysis. Under the promotion effect of Et3N andN,N-dimethyl formamide, vinyl sulfone and a derivative thereof are generated through intermolecular and intramolecular coupling under a mild condition with phenylbenzyl sulfone and paraformaldehyde asraw materials. Transition metal catalysis and a strong oxidant are not required in the method, and a new path is provided for synthesis of vinyl sulfone compounds. The method further has the characteristics that a reaction system is simple, reaction conditions are mild, the quantity of reaction equipment is small, experiment operation is easy and convenient, and the yield is above-average. 本申请涉及一种无需过渡金属催化，在碱和N.N-二甲基甲酰胺共同作