Ultrasound accelerated esterification of palmitic acid with vitamin C

Bin Wen; Wumanjiang Eli; Qunji Xue; Xin Dong; Weimin Liu

doi:10.1016/j.ultsonch.2006.02.003

Ultrasound accelerated esterification of palmitic acid with vitamin C

Bin Wen, Wumanjiang Eli, Qunji Xue, Xin Dong, Weimin Liu

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The esterification of palmitic acid with vitamin C in the presence of concentrated sulfuric acid as the solvent and catalyst by means of 25 kHz ultrasonic irradiation to obtain l-ascorbyl 6-palmitate is studied. By using ultrasound the dissolution rate of the reactants can be accelerated greatly, the reaction time of esterification can be reduced from 36 to 2 h, and better yield (90-93%) of ester can be given by using 95% concentrated sulfuric acid as the solvent and catalyst, contrast to the yield of 75-85% by using 99% concentrated sulfuric acid without ultrasound. The influence of reaction conditions and ultrasonic parameters to the yield of ascorbyl palmitate are reported.

Original language	English
Pages (from-to)	213-218
Number of pages	6
Journal	Ultrasonics Sonochemistry
Volume	14
Issue number	2
DOIs	https://doi.org/10.1016/j.ultsonch.2006.02.003
State	Published - Feb 2007
Externally published	Yes

Keywords

Acceleration of reaction
Esterification
l-Ascorbyl 6-palmitate
Synthetic technology
Ultrasound

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10.1016/j.ultsonch.2006.02.003

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title = "Ultrasound accelerated esterification of palmitic acid with vitamin C",

abstract = "The esterification of palmitic acid with vitamin C in the presence of concentrated sulfuric acid as the solvent and catalyst by means of 25 kHz ultrasonic irradiation to obtain l-ascorbyl 6-palmitate is studied. By using ultrasound the dissolution rate of the reactants can be accelerated greatly, the reaction time of esterification can be reduced from 36 to 2 h, and better yield (90-93%) of ester can be given by using 95% concentrated sulfuric acid as the solvent and catalyst, contrast to the yield of 75-85% by using 99% concentrated sulfuric acid without ultrasound. The influence of reaction conditions and ultrasonic parameters to the yield of ascorbyl palmitate are reported.",

keywords = "Acceleration of reaction, Esterification, l-Ascorbyl 6-palmitate, Synthetic technology, Ultrasound",

author = "Bin Wen and Wumanjiang Eli and Qunji Xue and Xin Dong and Weimin Liu",

year = "2007",

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T1 - Ultrasound accelerated esterification of palmitic acid with vitamin C

AU - Wen, Bin

AU - Eli, Wumanjiang

AU - Xue, Qunji

AU - Dong, Xin

AU - Liu, Weimin

PY - 2007/2

Y1 - 2007/2

N2 - The esterification of palmitic acid with vitamin C in the presence of concentrated sulfuric acid as the solvent and catalyst by means of 25 kHz ultrasonic irradiation to obtain l-ascorbyl 6-palmitate is studied. By using ultrasound the dissolution rate of the reactants can be accelerated greatly, the reaction time of esterification can be reduced from 36 to 2 h, and better yield (90-93%) of ester can be given by using 95% concentrated sulfuric acid as the solvent and catalyst, contrast to the yield of 75-85% by using 99% concentrated sulfuric acid without ultrasound. The influence of reaction conditions and ultrasonic parameters to the yield of ascorbyl palmitate are reported.

AB - The esterification of palmitic acid with vitamin C in the presence of concentrated sulfuric acid as the solvent and catalyst by means of 25 kHz ultrasonic irradiation to obtain l-ascorbyl 6-palmitate is studied. By using ultrasound the dissolution rate of the reactants can be accelerated greatly, the reaction time of esterification can be reduced from 36 to 2 h, and better yield (90-93%) of ester can be given by using 95% concentrated sulfuric acid as the solvent and catalyst, contrast to the yield of 75-85% by using 99% concentrated sulfuric acid without ultrasound. The influence of reaction conditions and ultrasonic parameters to the yield of ascorbyl palmitate are reported.

KW - Acceleration of reaction

KW - Esterification

KW - l-Ascorbyl 6-palmitate

KW - Synthetic technology

KW - Ultrasound

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DO - 10.1016/j.ultsonch.2006.02.003

M3 - 文章

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AN - SCOPUS:33749364420

SN - 1350-4177

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SP - 213

EP - 218

JO - Ultrasonics Sonochemistry

JF - Ultrasonics Sonochemistry

IS - 2

ER -

Ultrasound accelerated esterification of palmitic acid with vitamin C

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Keywords

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