Simultaneous HPLC analysis of biogenic amines, amino acids, and ammonium ion as aminoenone derivatives in wine and beer samples
A method has been developed for the simultaneous analysis of biogenic amines, amino acids, and the ammonium ion in wine and beer. Aminoenones formed by the reaction of amino acids, biogenic amines, and the ammonium ion with the derivatization reagent diet
A facile route to pyrroles, isoindoles and hetero fused analogues
The decarboxylative cyclisation process where enamino acids derived from 1, 2-dimethylaminomethylene or 1, 2 hydroxymethylene-carbonyl compounds and amino acids gets converted into pyrroles, isoindoles and other fused pyrroles, was discussed. The cyclisat
Gabbutt, Christopher D.,Hepworth, John D.,Heron, B. Mark,Pugh, Samantha L.
p. 2799 - 2808
(2007/10/03)
An unusual ring expansion from the Zav'yalov pyrrole synthesis: Formation of oxacino[2,3-c]pyrroles
Enamino acids 2 and 5 undergo a facile cyclisation to afford the pyrrole 3 and isoindole 6 ring systems; a novel two atom ring expansion ensues when derivatives 5b,d are subjected to the cyclisation conditions, resulting in the formation of the new oxacin
Gabbutt, Christopher D.,Hepworth, John D.,Heron, B. Mark,Elsegood, Mark R. J.,Clegg, William
p. 289 - 290
(2007/10/03)
Esterification of Amino Acids as Their 2,2-Bis(ethoxycarbonyl)vinyl Derivatives
A method to protect the amino group of the amino acids using diethyl (ethoxymethylene)malonate is described.The resulting derivatives are easily esterified with different alkylation agents.Elimination of the N-protecting group with bromine in chloroform a
Alaiz, Manuel,Giron, Julio,Hidalgo, Francisco Javier,Maza, Maria Pilar de la,Millan, Francisco,et al.
p. 544 - 547
(2007/10/02)
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