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ChemicalBook CAS DataBase List 2-[4-(Dibutylamino)-2-hydroxybenzoyl]benzoic acid
54574-82-2

2-[4-(Dibutylamino)-2-hydroxybenzoyl]benzoic acid synthesis

4synthesis methods
-

Yield:54574-82-2 41%

Reaction Conditions:

in toluene at 100; for 30 h;

Steps:

37.1 (1) Synthesis of a Benzoic Acid Derivative (Compound 73)
Into a round-bottom flask equipped with a stirring apparatus, 4.4 g (20.0 mmol) of N,N-dibutyl-m-aminophenol (Compound 72: produced by Wako Pure Chemical Industries, Ltd.), 3.2 g (20.0 mmol) of phthalic anhydride (Compound 23: produced by Wako Pure Chemical Industries, Ltd.), and 50 mL of toluene were added, and the reaction was carried out at 100° C. for 30 hours. After completion of the reaction, the crystal precipitated by cool-ing to room temperature was filtrated, and washed with ethyl acetate, and dried to obtain 3.0 g (yield: 41%) of a purple solid benzoic acid derivative (Compound 73).

References:

Wako Pure Chemical Industries, Ltd.;Suzuki, Katsufumi;Tsurumi, Yoshihisa;Kawano, Kei;Imazeki, Shigeaki;Murase, Tetsuji US2017/342031, 2017, A1 Location in patent:Paragraph 0668

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