scholarly journals Retention Behavior of Iron(III) Chelates with Amine-N-carboxylic Acids on Silica-gel and Octadecyl-silica Columns

1983 ◽  
Vol 56 (10) ◽  
pp. 2949-2951 ◽  
Author(s):  
Akihiro Yamaguchi ◽  
Atsuko Toda ◽  
Kunio Ohzeki ◽  
Tomihito Kambara
Keyword(s):  
Carboxylic Acids ◽  
Silica Gel ◽  
Retention Behavior ◽  
Octadecyl Silica

Direct amidation of carboxylic acids with amines under microwave irradiation using silica gel as a solid support

2015 ◽  
Vol 17 (5) ◽  
pp. 3157-3163 ◽  
Author(s):  
Andrea Ojeda-Porras ◽  
Alejandra Hernández-Santana ◽  
Diego Gamba-Sánchez
Keyword(s):  
Fatty Acids ◽  
Microwave Irradiation ◽  
Carboxylic Acids ◽  
Silica Gel ◽  
Solid Support ◽  
Secondary Amines ◽  
Primary And Secondary Amines ◽  
Direct Amidation

A highly improved methodology for the direct amidation of carboxylic acids with amines using silica gel as a solid support and catalyst is described. Several examples using aliphatic, aromatic, unsaturated and fatty acids combined with primary and secondary amines are shown.

scholarly journals Normal and reversed phase thin-layer chromatography of new 16, 17-secoestrone derivatives

2003 ◽  
Vol 68 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Marijana Acanski ◽  
Suzana Jovanovic-Santa ◽  
Lidija Jevric
Keyword(s):  
Thin Layer ◽  
Stationary Phase ◽  
Thin Layer Chromatography ◽  
Silica Gel ◽  
Reversed Phase ◽  
Retention Behavior ◽  
Mobile Phases ◽  
Layer Chromatography

The retention behavior and separation ability of a series of new 16,17-secoestrone derivatives has been studied on silica gel, alumina and C-18 silica gel layers with non-aqueous and aqueous-organic mobile phases. The retention behavior and separation ability are discussed in terms of the nature of the solute, eluent and stationary phase.

Oxidation of Aldehydes and Ketones into Carboxylic Acids and Esters Using 4-Amino-2-chloroperbenzoic Acid Supported on Silica Gel.

ChemInform ◽  
2005 ◽  
Vol 36 (36) ◽  
Author(s):  
Mohammed M. Hashemi ◽  
Dadkhoda Ghazanfari ◽  
Yousef Ahmadibeni ◽  
Zahed Karimi-Jaberi ◽  
Ali Ezabadi
Keyword(s):  
Carboxylic Acids ◽  
Silica Gel ◽  
Aldehydes And Ketones

scholarly journals Adsorption of Divalent Transition Metal Ions with a Chelating Agent on Octadecyl Silica Gel

2004 ◽  
Vol 20 (10) ◽  
pp. 1463-1464 ◽  
Author(s):  
Masamitsu IIYAMA ◽  
Syunichi OSHIMA ◽  
Hisao KOKUSEN ◽  
Masami SEKITA ◽  
Shigekazu TSURUBOU ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Silica Gel ◽  
Chelating Agent ◽  
Transition Metal Ions ◽  
Octadecyl Silica ◽  
Octadecyl Silica Gel
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