The 1H NMR of erythro and threo methyl 2,3-dichlorobutanoates were analyzed using a computer program MAOCON, a modified LAOCOON 3 program. In the spectrum of the threo form the order of the chemical shifts of protons on asymmetric carbons seems to be opposite to that reported in earlier ...
Gamage et al.: An exploration of the proton NMR problem-solving approaches Researchers have also explored the influence of different factors on students' ability to solve problems effectively (Lopez et al., 2014). In this study, the researchers used multivariate regression analysis to explore the ...
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Statistical analysis of the obtained data was performed by analysis of variance (ANOVA) followed by Dunnett’s test. All analyses were performed with GraphPad Prism 5 (GraphPad Software; San Diego, CA, USA). 4. Conclusions A new flexible, biologically active germacranolide (1, lobatolide H) ...
Provied information about methyl 2-hydroxy-4-(metoxycarbonyl)-2-methylbutanoate(Molecular Formula: C8H14O5, CAS Registry Number:100813-27-2 ) ,Boiling Point,Melting Point,Flash Point,Density, Molecular Structure,Risk Codes,Synthesis Route at guidechem
Chemical Name(R)-(-)-methyl-2-hydroxy-2-methylbutanoate CAS No.55568-78-0 Molecular FormulaC6H12O3 Molecular Weight132.159 PSA46.53000 LogP0.32040 PubChemID11571806 SynonymsButanoic acid, 2-hydroxy-2-methyl-, methyl ester, (2R)-; Methyl (2R)-2-hydroxy-2-methylbutanoate; View More55568...
Spearman’s correlation tests were used for the correlation analysis. Wilcoxon signed rank tests were used for the comparison of continuous variables among the two time points. Differences in changes of study variables during the follow up period between the two study groups were evaluated using ...
NMR spectroscopy was judged as suitable for the routine analysis of dairy products based on milk or on vegetable fat substitutes. 1. Introduction Due to industry efforts to provide low-cost foods or due to general ethical considerations against cow’s milk consumption [1], imitation dairy ...
The absolute configuration of enantiomerically pure ethyl 2-hydroxy-4-(-methylphenyl)but-3-enoate obtained by the reduction of the corresponding keto ester was assigned by H NMR using Mosher's method.Graphical abstractMethyl (2)-2-hydroxy-4-phenylbutanoate11143Ee=99%c)Source of chirality: ...
Provied information about methyl 4-oxo-4-(5-trimethylsilyl-2-thiazolyl)butanoate(Molecular Formula: C11H17NO3SSi, CAS Registry Number:106961-44-8 ) ,Boiling Point,Melting Point,Flash Point,Density, Molecular Structure,Risk Codes,Synthesis Route at guide