Synthesis and characterization of silica gel ion-exchanger bearing 2-amino-1-cyclopentene-1-dithio-carboxylic acid (ACDA) as chelating compound

1982 ◽  
Vol 310 (1-2) ◽  
pp. 1-5 ◽  
Author(s):  
T. Seshadri ◽  
A. Kettrup
Keyword(s):  
Carboxylic Acid ◽  
Silica Gel ◽  
Ion Exchanger ◽  
Synthesis And Characterization

scholarly journals CAAC Boranes. Synthesis and characterization of cyclic (alkyl) (amino) carbene borane complexes from BF3 and BH3

2010 ◽  
Vol 6 ◽  
pp. 709-712 ◽  
Author(s):  
Julien Monot ◽  
Louis Fensterbank ◽  
Max Malacria ◽  
Emmanuel Lacôte ◽  
Steven J Geib ◽  
...  
Keyword(s):  
Silica Gel ◽  
Synthesis And Characterization ◽  
Gel Chromatography ◽  
Nmr Analysis ◽  
X Ray ◽  
X Ray Crystallography ◽  
In Situ Formation ◽  
Silica Gel Chromatography

In situ formation of two cyclic (alkyl) (amino) carbenes (CAACs) followed by addition of BF3•Et2O provided the first two examples of CAAC–BF3 complexes: 1-(2,6-diisopropylphenyl)-3,5,5-trimethyl-3-phenylpyrrolidin-2-ylidene trifluoroborane, and 2-(2,6-diisopropylphenyl)-3,3-dimethyl-2-azaspiro[4.5]decan-1-ylidene trifluoroborane. These CAAC–BF3 complexes are robust compounds that are stable to ambient laboratory conditions and silica gel chromatography. They were characterized by spectroscopy and X-ray crystallography. In contrast, a CAAC complex with borane (BH3) was readily formed in situ according to 1H and 11B NMR analysis, but did not survive the workup conditions. These results set the stage for further studies of the chemistry of CAAC boranes.

Synthesis and Characterization of Lipophilic Organotins. Application to the Functionalization of Silica Gel

2007 ◽  
Vol 26 (23) ◽  
pp. 5576-5580 ◽  
Author(s):  
Marie-Laurence Dumartin ◽  
Hicham El Hamzaoui ◽  
Bernard Jousseaume ◽  
Marie-Claude Rascle ◽  
Thierry Toupance ◽  
...  
Keyword(s):  
Silica Gel ◽  
Synthesis And Characterization

Synthesis and Characterization of 3-Phenyl-adamantane-1-carboxylic Acid

2019 ◽  
Vol 35 (4) ◽  
pp. 556-559
Author(s):  
Wei Feng ◽  
Kaiqi Ye ◽  
Yang Jiang ◽  
Ruibin Hou
Keyword(s):  
Carboxylic Acid ◽  
Synthesis And Characterization
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