反应详情

In a manner similar to that of Example 2a, by reaction of 1.12 g (28 mmol) of sodium hydroxide with 960 mg (1.87 mmol) of ethyl 4′-(3-dimethylaminopropoxy)-3′-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylate (Example 7a) in 30 ml of tetrahydrofuran. 820 mg of 4′-(3-dimethylaminopropoxy)-3′-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphth-2-yl)biphenyl-4-carboxylic acid are obtained in the form of a white solid (m.p.=199° C., yield=90%).