Studies on estrification and sulphonation of riboflavin in the environment of highly concentrated sulphuric acid

Wojciech Pajak; Elzbieta Brzezińska

Studies on estrification and sulphonation of riboflavin in the environment of highly concentrated sulphuric acid

Acta Pol Pharm. 2003 Jan-Feb;60(1):21-6.

Authors

Wojciech Pajak¹, Elzbieta Brzezińska

Affiliation

¹ Department of Analytical Chemistry, Medical University of Lódź, 1 Muszyńskiego Str., 90-151 Lódź, Poland.

PMID: 12848363

Abstract

The article presents investigations of riboflavin reactions in aqueous solutions of sulphuric acid. Analysis of UV/VIS, 1H NMR spectra and TLC indicates that at the beginning of the reaction ester of riboflavin were obtained and then sulphonation reaction took place. From the analysis of UV/VIS spectra the kinetics of the reaction was calculated, using own computer program.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Algorithms
Esters / chemical synthesis
Kinetics
Magnetic Resonance Spectroscopy
Riboflavin / chemistry*
Sulfonic Acids / chemical synthesis
Sulfuric Acids / chemistry*

Substances

Esters
Sulfonic Acids
Sulfuric Acids
Riboflavin