2-[4-(Dibutylamino)-2-hydroxybenzoyl]benzoic acid synthesis
- Product Name:2-[4-(Dibutylamino)-2-hydroxybenzoyl]benzoic acid
- CAS Number:54574-82-2
- Molecular formula:C22H27NO4
- Molecular Weight:369.45
85-44-9
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54574-82-2
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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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141642-16-2
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54574-82-2
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536-90-3
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34874-62-9
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54574-82-2
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