Techniques for postcolumn derivatization in gas chromatography/mass spectrometry
The connection of the output of a conventional split-type capillary GC (gas chromatography) injector to the region between a capillary gas chromatograph and a mass spectrometer has allowed the addition of reagents to this region for purposes of postcolumn
Characteristic molecular patterns formed by N-octadecylbenzamide and N-8-quinolyloctadecanamide self-assembled on a graphite surface
Self-assembled monolayers of N-octadecylbenzamide (ODB) and N-8-quinolyloctadecanamide (ODQ) have been observed on the solution-solid interface by scanning tunneling microscope (STM). ODB molecules form stripe shaped lamella structure whereas ODQ gave a m
Qian, Pu,Nanjo, Hiroshi,Yokoyama, Toshiro,Suzuki, Toshishige M.
Benzoic acid-catalyzed transamidation reactions of carboxamides, phthalimide, ureas and thioamide with amines
An efficient and simple method for the transamidation of carboxamides, phthalimide, ureas and thioamide with amines catalyzed by commercially available benzoic acid under metal-free conditions is described. Furthermore, to the best of our knowledge, this is the first report about the transamidation of an aromatic thioamide with amines.
Wu, Ji-Wei,Wu, Ya-Dong,Dai, Jian-Jun,Xu, Hua-Jian
supporting information
p. 2429 - 2436
(2014/09/30)
The conversion of aryl and heteroaryl methylketones to the corresponding secondary or tertiary amides
Secondary or tertiary amides have been prepared directly from aryl, heteroaryl methyl ketones using an iodineamine-NaOH system which afforded the expected products in good yields in an aqueous medium. The present method has the advantages of using inexpensive reagents, mild reaction condition and ease of manipulation.
A mild and efficient procedure for the preparation of acid chlorides from carboxylic acids
Various carboxylic acids are converted into the corresponding acid chlorides by treatment with trichloroacetonitrile and triphenylphosphine in methylene chloride at room temperature. Aryl acids show higher reactivity than alkyl acids under the conditions.
Jang, Doo Ok,Park, Doo Jin,Joonggon, Kim
p. 5323 - 5326
(2007/10/03)
The aminomethylation of isobutyraldehyde with free primary amines in homogenous and heterogenous media. II. Mannich bases
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Moehrle,Schnaedelbach
p. 699 - 706
(2007/10/04)
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