616-82-0Relevant articles and documents
A Novel Host Containing Both Binding Site and Nucleophile Prepared by Attachment of β-Cyclodextrin to Poly(ethylenimine)
Suh, Junghun,Lee, Sang Hee,Zoh, Kyung Duk
, p. 7916 - 7917 (1992)
-
METHOD FOR SPECIFIC CLEAVAGE OF C Alpha-C BOND AND SIDE CHAIN OF PROTEIN AND PEPTIDE, AND METHOD FOR DETERMINING AMINO ACID SEQUENCE
-
, (2017/12/15)
The present invention provides a method for specifically cleaving a Cα-C bond of a peptide backbone and/or a side chain of a protein and a peptide, and a method for determining amino acid sequences of protein and peptide. A method for specifically cleaving a Cα-C bond of a peptide backbone and/or a side chain bond of a protein or a peptide, comprising irradiating a protein or a peptide with laser light in the presence of at least one hydroxynitrobenzoic acid selected from the group consisting of 3-hydroxy-2-nitrobenzoic acid, 4-hydroxy-3-nitrobenzoic acid, 5-hydroxy-2-nitrobenzoic acid, 3-hydroxy-5-nitrobenzoic acid, and 4-hydroxy-2-nitrobenzoic acid. A method for determining an amino acid sequence of a protein or a peptide, comprising irradiating a protein or a peptide with laser light in the presence of the above specific hydroxynitrobenzoic acid to specifically cleave a Cα-C bond of a peptide backbone and/or a side chain bond, and analyzing generated fragment ions by mass spectrometry.
Amyl nitrite-mediated conversion of aromatic and heteroaromatic primary amides to carboxylic acids
Potter, Garrett T.,Jayson, Gordon C.,Miller, Gavin J.,Gardiner, John M.
supporting information, p. 5153 - 5156 (2015/08/19)
A series of aromatic and heteroaromatic primary amides were converted directly to carboxylic acids by heating with amyl nitrite in acetic acid. Most conversions proceeded to give reasonable to excellent yields on a range of substrates containing various functional groups. This reagent system is thus applicable for the direct hydrolysis of a range of different primary carboxamides. The reaction with a phenolic aromatic substrate afforded two alternative nitration products as major outcomes, evidencing alternative reaction pathways resulting from the free phenolic OH.
Phosphoric acid modified montmorillonite clay: A new heterogeneous catalyst for nitration of arenes
Bharadwaj, Saitanya K.,Boruah, Purna K.,Gogoi, Pradip K.
, p. 124 - 128 (2014/12/11)
The easily available montmorillonite clay is treated with phosphoric acid and 10 wt.% is found to be the optimum concentration of phosphoric acid that can be adsorbed chemically on the surface of the clay. Acidity of this phosphoric acid treated montmorillonite clay (PAM) is determined by volumetric as well as potentiometric titration and characterized. Catalytic efficacy of PAM in nitration of various aromatic compounds is reported.