Separation of olefinic isomers

Details Separation of olefinic isomers Separation of olefinic isomers

2005-03-01

2005-03-01

Wilson, James O. (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S017100, C536S017200, C536S018700, C536S055000, C536S055200, C536S124000, C536S127000, C536S123130

Reexamination Certificate

active

06861512

ABSTRACT:
The geometric isomers of olefins and olefinic compounds are separated by means of liquid chromatography using a stationary phase comprising an organosilane with a pendant aliphatic functional group such as C18and a mobile phase which includes an additive comprising alkanes and alkenes.

REFERENCES:
patent: 3940972 (1976-03-01), Norell et al.
patent: 5569808 (1996-10-01), Cansell et al.
patent: 5681824 (1997-10-01), Christ et al.
patent: 5750664 (1998-05-01), Christ et al.
patent: 5843918 (1998-12-01), Christ et al.
Bhat et al. J. of Chromatography, 260 (1983) 129-136.*
Scacchi et al. J. of Chromatography, 114 (1975) 255-257.*
Grindel et al. J. of Chromatography, 272 (1983) 210-215 (Abstract).*
Bhat, Pangala V. et al., “Effect of 2-Alkanols on the Separation of Geometric Isomers of Retinol in Non-Aqueous High-Performance Liquid Chromatography” Journal of Chromatography 260:129-136 (1983).
Creer, Michael H. et al., “Separation of Isomeric Lysophospholipids by Reverse Phase HPLC”, Lipids 20:922-928 (1985).
Dimitrova, B.A., HPLC Method for Separation of Trans/CIS Isomers of Unsaturated Hydrocarbons Using a Silver Nitrate Impregnated Silica Gel (10 μm), Comptes rendus de l'Academie bulgares des Sciences, Tome 32, N 10:1381-1384 (1979).
Eisen, Heliu Raude, O., “Separation and Preparative Purification of Geometric Isomers of C9-C12n-Alkenes by Gas Chromatography, Using AgNO3and Hexandiol-1,6 as a Stationary Phase”, Eesti NSV Teaduste Akadeemia Toimetised, 198 Koide Keemia Geoloogia: 168-170 (1970).
Köhler, J. et al., “Preparative LC Separation and Isolation of Enantiomerically Pure Olefins”, Chromatographia 18:119-124 (1984).
Magidman, R.A. et al., “Bound-Monolayer Cation Exchanger for Gas-Liquid Chromatographic Separation of cis and trans Alkenes”, Analytical Chemistry 48:44-47 (1976).
Moberg, Christine et al., “Ligand-exchange Chromatography of Alkenes on Stationary Phases Containing Palladium(II) Complexes, Enantiomeric Separation of trans-1,2-divinylcyclohexane” Journal of Chromatography 585:309-314 (1991).
Scacchi, G. et al., “Separation and Analysis of Small Quantities of Saturated C6Hydrocarbons from Large Quantities of Olefins”, Journal of Chromatography 114:255-257 (1975).
Schomburg G., et al. “Separation of Olefinic Compounds by Reversed-phase Liquid Chromatography with a Mobile Phase Containing π-Complexing Metal Salts Like Silver Nitrate” Journal of Chromatography 114:147-178 (1975).

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