Papers by Author: Zhi Wei Miao

Abstract: Benzyl 4-ethyloctanoate was synthesized by the reaction of 4-ethyloctanoyl chloride with benzyl alcohol, and its synthesis conditions were optimized. The yield of benzyl 4-ethyloctanoate was about 93%. Based on the synthesis of benzyl 4-ethyloctanoate, phenethyl 4-ethyloctanoate, phenylpropanol 4-ethyloctanoate and cinnamyl 4-ethyloctanoate were prepared. The odor evaluations indicate that these four new ester compounds have floral and sweet note. These ester compounds have relatively high molecular weights and can be used as fixing agent to prolong the fragrance compounds lifetime.

Abstract: 3-Methylthiopropionaldehyde diethyl acetal was synthesized from the reaction of 3-methylthiopropional with ethanol and triethyl orthoformate. The effecting factors including the kinds of catalyst, the mole ratio of raw materials, the amount of catalyst and the reaction time were optimized. The structure of product was characterized by gas chromatography, infrared spectroscopy, mass spectrometry, and nuclear magnetic resonance. Additionally, the mechanism of the reaction was speculated; the odor characteristics were evaluated.