Method for synthesizing furan phenol under catalysis of magnesium lewis acid

The invention discloses a method for synthesizing furan phenol under the catalysis of magnesium lewis acid, which comprises the following specific steps: mixing 2-(2-methyl allyloxy) phenol and a solvent together, then carrying out cyclization reaction, and synthesizing the furan phenol under the catalysis of the magnesium lewis acid, the magnesium lewis acid comprises magnesium halide and magnesium alkoxide, the magnesium alkoxide is magnesium tert-butoxide, the solvent is one or a mixture of xylene, o-dichlorobenzene and N-methyl pyrrolidone, and the 2-(2-methyl allyloxy) phenol accounts for 20-50% of the solvent. The magnesium tert-butoxide accounts for 1-10% of the mass of the 2-(2-methyl allyloxy) phenol. The cyclization reaction temperature is 150-220 DEG C, and the reaction time is 1-10 hours. According to the method, the magnesium lewis acid is adopted for catalytic synthesis of the furan phenol, reaction conditions are mild, side reactions are few, and the yield of the furan phenol can be effectively