(1,1'-Biphenyl)-2-ol → HCID 14943981, compound

Participants

Reaction Conditions

Reaction Steps

A four-necked 1-liter flask, equipped with a stirrer, a thermometer, and a reflux condenser, was filled with 170.2 g (1 mol) of 2-hydroxybiphenyl, 337.3 g (2.2 mol) of phosphorus oxychloride and 0.95 g (0.01 mol) of anhydrous magnesium chloride. This mixed liquid was heated to the temperature of 105° C. over three hours while being stirred under a nitrogen atmosphere, and it was stirred for 1 hour at the same temperature (105° C.) to allow a reaction to proceed. After the reaction, the pressure was reduced to 6.7 kPa at a liquid temperature of 105° C. The same pressure was maintained for 1 hour and excess (unreacted) phosphorus oxychloride was recovered. Thus, 290.8 g of 2-biphenylylphosphorodichloridate (chlorine content: 24.7%) was obtained.

Provenance & Evidence