POLAR SILANES AND THEIR USE ON SILICA SUPPORTS

A modified silica support having a polar phase bound to its surface and suitable for use for chromatographic separations, having the following formula: (I); wherein, m = 0 - 20; n = 0 - 20; p =1 - 50; X is sulfonyl, carbonyl, carbamoyl, or oxycarbonyl; R1 = H, alkyl, substituted alkyl, aryl or subst...

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Bibliographische Detailangaben
Hauptverfasser:	LIU, XIAODONG, BORDUNOV, ANDREI V
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS SEPARATION TESTING THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A modified silica support having a polar phase bound to its surface and suitable for use for chromatographic separations, having the following formula: (I); wherein, m = 0 - 20; n = 0 - 20; p =1 - 50; X is sulfonyl, carbonyl, carbamoyl, or oxycarbonyl; R1 = H, alkyl, substituted alkyl, aryl or substituted aryl groups; R2 = alkyl, substituted alkyl, aryl or substituted aryl groups; and R3 and R4 are alkyl, aryl, hydroxyl, or alkoxyl groups or groups including oxygen atoms cross-linked to silicon atoms. Also, a polar silane intermediate to make this support.