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ChemicalBook CAS DataBase List 16-(Benzyloxy)-16-Oxohexadecanoic Acid
146004-98-0

16-(Benzyloxy)-16-Oxohexadecanoic Acid synthesis

4synthesis methods
-

Yield: 55.6%

Reaction Conditions:

with sodium carbonate in 2-methyltetrahydrofuran;water at 75; for 22 h;

Steps:

1 Example 1
Add sodium carbonate (424mg, 4.0mmol) to the reaction flask And water (14.3g, 794.4mmol),Add after stirring and dissolvingHexadecanedioic acid (1.43 g, 5.0 mmol),2-methyltetrahydrofuran (35.0g) and benzyl bromide (1.37g, 8.0mmol),The reaction system is heated to 75 ° C.The reaction was stopped by stirring for 22 h.Add hydrochloric acid to the system to make the pH of the aqueous phase reach 1-3.The layers were separated and the organic layer was spin-dried to obtain a solid residue.The rotary residue was slurried with dichloromethane (28 g), filtered,The filtrate was spin-dried to give a solid residue.The rotary evaporation residue was recrystallized from isopropanol (3 g) to obtain 1046 mg of a white solid,The yield was 55.6%.

References:

Guangdong Dongyangguang Pharmaceutical Co., Ltd.;Lai Jinqiang;Feng Yahui;Mai Jiancong;Zhong Zhentao;Wang Zhongqing;Luo Zhonghua;Huang Fangfang CN110551023, 2019, A Location in patent:Paragraph 0027-0028