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(2) Benzyl alcohol oxidation method
①Hydrogen peroxide method
a.
I.
II.
b.
I.
II.
②Solvent-free catalytic oxidation method Add the metal oxide catalyst (2.
The experimental results of several different metal oxides for catalytic oxidation of benzyl alcohol are shown in Table 6-14
Table 6-14 The relationship between different catalysts and yield
When the catalyst is ZnO and CuO, the yields are 81% and 58%, respectively
Through experiments, it can be concluded that the best synthesis conditions are n(Benzyl Alcohol): n(NaOH): n(ZnO)=10:10:1, the reflux time is 2h, and the yield can reach more than 90%