Samsung Electronics Co., Ltd.

Hyeon Su Heo

Moo Ho Lee

Jong Min Lee

Nam Ki Park

Jun Chwae

Seung Yong Hwang

Kwang Joon Cho

Kyung Hae Lee

Provided is a two-step method of producing a compound of chemical formula 1 in the presence of an alcohol solvent and a Group 3B metal catalyst or a salt thereof, comprising a first step comprising alkylation or isomerization of an aldohexose-containing substrate to obtain an intermediate, and a second step comprising dehydration of the intermediate to produce a compound of chemical formula 1. Preferably, additional solvent and/or catalyst are not added in the second step.

Method of preparing furfural compounds

A method of producing an unsaturated acid from a salt of a hydroxycarboxylic acid, the method includes providing an aqueous solution including a salt of a hydroxycarboxylic acid; adding a solvent with a boiling point of 200&#xb0; C. or higher to the aqueous solution; and heating the aqueous solution at a temperature lower than the boiling point of the solvent to split a salt from the salt of the hydroxycarboxylic acid while simultaneously dehydrating the hydroxycarboxylic acid, thereby converting the hydroxycarboxylic acid to the unsaturated acid.

Method of producing unsaturated acid from salt of hydroxycarboxylic acid

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Euijeongbu-si, South Korea

Hyeon Su Heo