The effect of solvent composition on the acidity of substituted phenols in DMSO-H 2 O systems was examined. It is shown that in DMSO-H 2 O mixtures with up to 35 mol% DMSO there is a linear relationship between the pK a values of monosubstituted phenols in the binary solvent mixtures of different co
Effects of substituents on the acid-catalyzed thermolysis of sucrose in dimethyl sulfoxide
β Scribed by Wayne Moody; Geoffrey N. Richards
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 455 KB
- Volume
- 111
- Category
- Article
- ISSN
- 0008-6215
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β¦ Synopsis
The rates of acid-catalyzed degradation of a number of acetyl-substituted sucrose derivatives in dimethyl sulfoxide have been determined. The results indicate that the rate is markedly diminished by acetylation at O-l or -3 of the D-fructosyl group. This increased stability of the substituted sucrose derivatives is also reflected in an increased stability of the D-fructose derivatives that are formed in the reaction.
π SIMILAR VOLUMES
I'he etlect of three water-soluble fusogens: dimethyl sulfoxide (DMSO), glycerol and sucrose on the structural properties of model lipid membranes has been studied by electron spin resonance (ESR) using 5-doxylstearic acid as a spin probe and by fluorescence spectroscopy using pyrene as an cxcimer f