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ChemicalBook CAS DataBase List 2,2'-DIMETHYL-4,4'-BIPHENYLDIOL
59517-19-0

2,2'-DIMETHYL-4,4'-BIPHENYLDIOL synthesis

1synthesis methods
-

Yield:59517-19-0 55%

Reaction Conditions:

with RuZn2In2S5 in acetonitrile at 20; for 96 h;Inert atmosphere;Sealed tube;Irradiation;

Steps:

14 Example 14

In a 5ml quartz glass reaction tube, add 0.2ml m-cresol and 0.8ml acetonitrile respectively, weigh 8mg Ru-Zn2In2S5-0.31 to catalyze the reaction, replace the reaction tube with argon and seal it, and irradiate with 1.8W at room temperature LED (450 ~ 460nm) illumination for 96h, after the reaction, the product was detected by chromatography. After the reaction, acetonitrile is first distilled out, and then the unreacted p-cresol is removed by steam distillation, and the p-cresol is recovered after liquid separation and drying for recycling. The conversion of p-cresol was 90.2% with an average conversion rate of 0.244 g g catalyst-1h-1,2,2'-dimethyl-[1,1'-diphenyl]-4,4'-diol The selectivity is 55%. Except that the raw materials added are different, the catalyst preparation steps are the same as those in Example 2, and the different preparation raw material components are shown in Table 1.

References:

CN114181047,2022,A Location in patent:Paragraph 0096-0099

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