Gas-liquid chromatography and mass spectrometry of trimethylsilyl ethers and butaneboronate-trimethyl-silyl derivatives of polyhydroxyalkylpyrazines

1978 ◽  
Vol 67 (2) ◽  
pp. 549-563 ◽  
Author(s):  
Hironubo Tsuchida ◽  
Kazunri Kitamura ◽  
Mashiko Komoto ◽  
Norimi Akomori
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Trimethylsilyl Ethers ◽  
Silyl Derivatives ◽  
Derivatives Of

P.M.R. Spectroscopy of Trimethylsilyl Derivatives of Hydroxy Acids

1972 ◽  
Vol 50 (23) ◽  
pp. 3913-3916 ◽  
Author(s):  
Guy Gordon Studdy Dutton ◽  
Norman Funnell ◽  
Kelly Blair Gibney
Keyword(s):  
Liquid Chromatography ◽  
Carboxyl Groups ◽  
Gas Liquid Chromatography ◽  
Hydroxy Acids ◽  
Trimethylsilyl Ethers ◽  
Trimethylsilyl Derivatives ◽  
Derivatives Of

P.m.r. spectroscopy at 60 MHz of trimethylsilyl ethers and esters, prepared from hydroxy acids, gives well resolved sharp singlets in the range τ 9.8–9.9, These signals may be used to determine the ratio of hydroxyl to carboxyl groups in a molecule. Measurements may be made directly on fractions isolated by gas–liquid chromatography. The influence of the solvent on the resolution is demonstrated.

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