Topic
Silica gel
About: Silica gel is a research topic. Over the lifetime, 22313 publications have been published within this topic receiving 325516 citations. The topic is also known as: Amorphous silica & Precipitated amorphous silica.
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TL;DR: In this article, a rod-shaped monolithic column for liquid chromatography was designed by controlling the phase separation process induced by the hydrolysis and polycondensation of alkoxysilane, whereas the mesopore structure was tailored by the solvent exchange treatments on wet gels.
Abstract: Silica gels retaining double pore structure in the size ranges of micrometer and nanometer have been applied to the rod-shaped monolithic column for liquid chromatography. The macropore structure was designed by controlling the phase separation process induced by the hydrolysis and polycondensation of alkoxysilane, whereas the mesopore structure was tailored by the solvent exchange treatments on wet gels. The size exclusion chromatograms on polystyrene standards exhibited almost similar features for octadecyl-modified rod and conventional packed beads columns. The dependence of plate height on the velocity of mobile phase determined for amylbenzene was by far weaker in the rod column than in the packed beads column, suggesting that additional geometrical factors should be considered in describing the separation mechanism in the rod column.
104 citations
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104 citations
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TL;DR: In this paper, both racemic jasmonic acid and the naturally occurring (-)-enantiomer [(-)-JA have been reacted with aliphatic, aromatic as well as acidic amino acids to form amide-linked derivatives.
104 citations
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TL;DR: In this paper, the N-heterocyclic carbene-Pd complex was readily prepared by reaction of silica gel-supported imidazolium chloride with Pd(OAc)2.
104 citations
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TL;DR: Pdnp–B in the synthesis of 2,3-disubstituted indoles from 2-(alkynyl)trifluoroacetanilides and aryl halides and the Suzuki–Miyaura cross-coupling is reported.
103 citations