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2 results about "Alkane synthesis" patented technology
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Polymerization of alkenes is a reaction that yields polymers of high industrial value at great economy, such as the plastics polyethylene and polypropylene. Polymers from alkene monomers are referred to in a general way as polyolefins or in rare instances as polyalkenes.
Preparation method of alkyl-substituted polyfluorinated aromatic hydrocarbon based on Hanus ester
PendingCN121949041AIncrease the scope of universalityBiologically activeCarbamic acid derivatives preparationOrganic compound preparationArylOrganic synthesis
The invention discloses a preparation method of alkyl-substituted polyfluorinated aromatic hydrocarbon based on Hanus ester, and belongs to the field of organic synthesis. The invention solves the problems that the existing polyfluoroaryl substituted alkane synthesis substrate has large range limitation, needs metal catalysis, and needs harsh reaction conditions such as high temperature, no water, no oxygen and the like. The method comprises the following steps: uniformly mixing polyfluorinated aromatic hydrocarbon, alkyl-substituted Hanus ester, an Ir (dFCF3ppy) dtbpyPF6 photocatalyst, anhydrous potassium carbonate and an organic solvent, and then carrying out blue illumination reaction. The method is used for preparing the alkyl-substituted polyfluorinated aromatic hydrocarbon based on the Hanus ester.
Owner:GUIZHOU MINZU UNIV
A bidentate ligating amide embedded c 18 Process for the preparation of silica gel chromatography column packings and use thereof
The application relates to a bidentate chelating amide embedded C 18 Preparation method of silica gel column filler and application thereof. The preparation method of the filler comprises the following steps: activating silica gel balls, embedding bidentate amide into C 18 alkane synthesis, bonding reaction steps. Different from the prior art, the bidentate amide embedded C 18 alkane is synthesized through nucleophilic substitution, the bidentate amide embedded C 18 alkane is bonded to the surface of silica gel, one functional group is connected to the surface of silica gel by two silicon-oxygen bonds at the same time, the hydrolysis stability of the silica gel is improved, the stationary phase density is increased, and the surface carbon loading is increased. The preparation method has the advantages of simple operation, mild reaction condition, specificity and high grafting rate. The chromatographic column can be hydrophilic and can be used under a wide pH value mobile phase, has good separation performance for different polar compounds, and is suitable for the field of drug detection.
