The present invention relates to monoterpenoid and phenylpropanoid containing derivative compounds, methods of making the compounds, compositions comprising the compounds, and methods of repelling pests using the compounds and/or compositions.

The present invention relates to monoterpenoid and phenylpropanoid containing derivative compounds, methods of making the compounds, compositions comprising the compounds, and methods of repelling pests using the compounds and/or compositions.

The present application relates to hydroxymelonal formate as a flavor and fragrance ingredient, compositions comprising the same, and methods of making the same.

The present application relates to hydroxymelonal formate as a flavor and fragrance ingredient, compositions comprising the same, and methods of making the same.

A method for preparing a methyl ester compound is provided, including: subjecting a raw material of a carboxyl compound, methanol and/or dimethyl ether to an esterification reaction to obtain the methyl ester compound, where the general formula I of the carboxyl compound is RCH.sub.2COOH, where R is a methoxy or hydroxyl; and the methyl ester compound comprises at least one of methyl methoxyacetate and methyl glycolate. This application also discloses a method for preparing a methyl glycolate, comprising the steps of: a) subjecting methylal and carbon monoxide to a carbonylation reaction to obtain methyl methoxyacetate; b) subjecting the methyl methoxyacetate and water to a hydrolysis reaction to obtain the methyl glycolate; and c) subjecting glycolic acid, methoxyacetic acid, methanol, and dimethyl ether to an esterification reaction to obtain the methyl glycolate.

A method for preparing a methyl ester compound is provided, including: subjecting a raw material of a carboxyl compound, methanol and/or dimethyl ether to an esterification reaction to obtain the methyl ester compound, where the general formula I of the carboxyl compound is RCH.sub.2COOH, where R is a methoxy or hydroxyl; and the methyl ester compound comprises at least one of methyl methoxyacetate and methyl glycolate. This application also discloses a method for preparing a methyl glycolate, comprising the steps of: a) subjecting methylal and carbon monoxide to a carbonylation reaction to obtain methyl methoxyacetate; b) subjecting the methyl methoxyacetate and water to a hydrolysis reaction to obtain the methyl glycolate; and c) subjecting glycolic acid, methoxyacetic acid, methanol, and dimethyl ether to an esterification reaction to obtain the methyl glycolate.