Electrochemical preparation method of (E)-alpha, beta-unsaturated silane compound

The invention discloses an electrochemical preparation method of (E)-alpha, beta-unsaturated silane compounds, and belongs to the technical field of electrochemical organic synthesis. The preparation method comprises the following steps: sequentially adding alpha, beta-unsaturated carboxylic acid, silane, alkali, a hydrogen transfer reagent, an electrolyte, an electrolytic solvent and a magnetic stirrer into a diaphragm-free electrolytic tank, inserting an anode and a cathode, stirring, electrifying, reacting under a constant-current condition, and after the reaction is completed, carrying out organic extraction on a reaction solution by using an organic solvent to obtain an organic phase; and then separating and purifying to obtain the (E)-alpha, beta-unsaturated silane compound. The electrodes used in the method are common inert electrodes, and electrode modification is not needed; an oxidizing agent and a metal catalyst do not need to be additionally added; reaction raw materials are cheap and easy to obta