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ChemicalBook CAS DataBase List 2-Ethylbutyric acid
88-09-5

2-Ethylbutyric acid synthesis

8synthesis methods
By catalytic oxidation of diethylacetaldehyde or by decarboxylation of diethylmalonic acid.
-

Yield:88-09-5 88%

Reaction Conditions:

with N-hydroxyphthalimide;oxygen in acetonitrile at 30; for 3 h;Schlenk technique;

Steps:

9 Example 9: Synthesis of 2-ethylbutyric acid
5 mol% NHPI was added to a 25 mL Schlenk reaction tube, dried under vacuum for 15 minutes, and oxygen was bubbled in an oxygen atmosphere.2 mL of acetonitrile and 1.0 equivalent of 2-ethylbutanal were added in this order, and an oxygen balloon was connected, and a glass stopper was placed on the reaction tube.Into the oil bath, react at 30 ° C for 3 h. After the reaction is completed, it is concentrated under reduced pressure and separated by column chromatography. The eluent is petroleum ether / ethyl acetate /Dichloromethane (v: v: v = 5: 1:1) gave 2-ethylbutyric acid. Yield 88%, light yellow liquid;

References:

University of Science and Technology of China;Kang Yanbiao;Dai Pengfei CN108314599, 2018, A Location in patent:Paragraph 0033; 0034

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