614-33-5Relevant articles and documents
Method for preparing amino alcohol derivative
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Paragraph 0084; 0085; 0086, (2018/11/22)
The invention provides a method for preparing an amino alcohol derivative. The method is characterized in that substitution reaction is carried out on ester groups of dihydric alcohol carboxylic esteror polyhydric alcohol carboxylic ester to obtain the amino alcohol derivative, wherein the amidogen is derived into sulfonamido, and at least one carboxylic ester group remains. The method for preparing the amino alcohol derivative has the advantages that the raw materials are cheap and obtained easily, the use quantity of catalysts is low, the reaction condition is simple, and the selectivity ofproducts is high.
A solid acid catalysis of the preparation process of benzoic acid ester plasticizer (by machine translation)
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Paragraph 0030; 0031, (2017/07/05)
The present invention discloses a solid acidify catalytic benzoic acid ester plasticizer of the preparation process, the preparation method is: to benzoic acid and alcohol as the raw material, with agent and catalyst in direct reaction to produce benzoic acid ester compound; catalytic system of the invention compared with the sulfuric acid, toluene sulfonic acid and sulfuric acid to sodium has a better catalytic activity, so the catalyst less consumption, in addition, because of the use of the is supported on a solid acid catalyst, after the reaction directly filtering can realize the separation of the catalyst, and the catalyst can be reused, makes the production process more simple, and can be basically prevent the generation of waste water, makes the production process more green environmental protection. (by machine translation)
Evaluation of glycerol profiles in sugarcane spirits (cacha?as)
Garcia, André C.,Serafim, Felipe A. T.,Keukeleire, Denis De,Franco, Douglas W.
, p. 57 - 63 (2015/02/19)
A new method for glycerol quantification in sugarcane spirits (cacha?as) is proposed, based on sample derivatization using benzoyl chloride followed by solid-phase extraction and high performance liquid chromatography with diode array detection analysis. The limits of detection and quantification for glycerol analysis are 0.25 mg L -1 and 0.74 mg L-1, respectively. The accuracy is of 97.5percent, the precision 93.5percent and the linearity r2 = 0.998 in the range of 0.56 mg L-1 to 112.0 mg L-1of glycerol. Experiments with forty eight samples of aged and non-aged cacha?as and seven alcoholic extracts of wood showed that the aging process contributes to increase the glycerol concentration. The average concentration of glycerol in aged cacha?as were about 10-fold higher than in non-aged cacha?as.