Theoretical study of the gas-phase decomposition of neutral α-amino acid ethyl esters. Part 1-The elimination ofN,N-dimethylglycine ethyl ester and ethyl 1-piperidineacetate

2002 ◽  
Vol 15 (7) ◽  
pp. 413-419 ◽  
Author(s):  
Jairo Quijano ◽  
Rafael Notario ◽  
Eduardo Chamorro ◽  
Luis A. León ◽  
Claudia Sánchez ◽  
...  
Keyword(s):  
Amino Acid ◽  
Gas Phase ◽  
Ethyl Ester ◽  
Theoretical Study ◽  
Ethyl Esters ◽  
Phase Decomposition

Theoretical study of the gas-phase decomposition of neutral α-amino acid ethyl esters. Part 2-Elimination of ethyl picolinate and ethyl 1-methylpipecolinate

2003 ◽  
Vol 16 (3) ◽  
pp. 166-174 ◽  
Author(s):  
Rafael Notario ◽  
Jairo Quijano ◽  
Luis A. León ◽  
Claudia Sánchez ◽  
J. Camilo Quijano ◽  
...  
Keyword(s):  
Amino Acid ◽  
Gas Phase ◽  
Theoretical Study ◽  
Ethyl Esters ◽  
Phase Decomposition

Influence of H2on the Gas-Phase Decomposition of Formic Acid:  A Theoretical Study

2005 ◽  
Vol 109 (40) ◽  
pp. 9129-9140 ◽  
Author(s):  
Shao-Wen Hu ◽  
Xiang-Yun Wang ◽  
Tai-Wei Chu ◽  
Xin-Qi Liu
Keyword(s):  
Formic Acid ◽  
Gas Phase ◽  
Theoretical Study ◽  
Phase Decomposition

Production of doubly-charged highly reactive species from the long-chain amino acid GABA initiated by Ar9+ionization

2017 ◽  
Vol 19 (30) ◽  
pp. 19609-19618 ◽  
Author(s):  
Dariusz Grzegorz Piekarski ◽  
Rudy Delaunay ◽  
Arkadiusz Mika ◽  
Sylvain Maclot ◽  
Lamri Adoui ◽  
...  
Keyword(s):  
Amino Acid ◽  
Gas Phase ◽  
Theoretical Study ◽  
Reactive Species ◽  
Aminobutyric Acid ◽  
Multiply Charged ◽  
Doubly Charged ◽  
Long Chain

We present a combined experimental and theoretical study of the fragmentation of multiply-charged γ-aminobutyric acid molecules (GABAz+,z= 2, 3) in the gas phase.

The kinetics and mechanisms of gas phase elimination of the ethyl ester of amino acid hydrochlorides

2006 ◽  
Vol 19 (5) ◽  
pp. 326-332 ◽  
Author(s):  
Gabriel Chuchani ◽  
Armando Herize ◽  
Rosa María Domínguez ◽  
Alexandra Rotinov ◽  
Maria Tosta
Keyword(s):  
Amino Acid ◽  
Gas Phase ◽  
Ethyl Ester ◽  
Phase Elimination

N-Benzoylthiocarbamoyl Amino Acid Ethyl Esters as Chelate Ligands for Transition Metal Ions

1998 ◽  
Vol 53 (9) ◽  
pp. 981-990 ◽  
Author(s):  
Frank Leßmann ◽  
Lothar Beyer ◽  
Rainer Richter ◽  
Reinhard Meusinger
Keyword(s):  
Amino Acid ◽  
Ethyl Ester ◽  
Optical Rotation ◽  
Transition Metal Ions ◽  
Crystal Structure Analysis ◽  
Ethyl Esters ◽  
Specific Optical Rotation ◽  
X Ray ◽  
Glycine Ethyl Ester ◽  
Benzoyl Isothiocyanate

Abstract The reactions of benzoyl isothiocyanate with amino acid ethyl esters (N-butyl glycine ethyl ester, (S)-(-)-proline ethyl ester) give N-benzoylthiocarbamoyl amino acid ethyl esters. Apart from the expected N-benzoylthiocarbamoyl (S)-(-)-proline ethyl ester the racemic N-benzoyl­ thiocarbamoyl (R)/(S)-proline ethyl ester is formed because of base catalyzed racemization of the educt (S)-(-)-proline ethyl ester during the reaction of (S)-(-)-proline ethyl ester hydrochloride with triethylamine. The structures of both compounds were established by X-ray crystal structure analysis and specific optical rotation measurements. The ligands yield neutral 2:1 chelates with NiII, CuII, PdII and PtII. The carboxylic oxygen atoms are not involved in the chelation. The ligands and the resultant complexes show configurational E/Z isomerism. In the case of the chelates of the racemic N-benzoylthiocarbamoyl (R)/(S)-proline ethyl ester, additional R/S isomerism is observed as shown by NMR spectroscopy.

The mechanism of neutral amino acid decomposition in the gas phase. The elimination kinetics ofN,N-dimethylglycine ethyl ester, ethyl 1-piperidineacetate, andN,N-dimethylglycine

2001 ◽  
Vol 33 (8) ◽  
pp. 465-471 ◽  
Author(s):  
Adolfo Ensuncho ◽  
M. Jennifer Lafont ◽  
Alexandra Rotinov ◽  
Rosa M. Domínguez ◽  
Armando Herize ◽  
...  
Keyword(s):  
Amino Acid ◽  
Gas Phase ◽  
Ethyl Ester ◽  
Neutral Amino Acid ◽  
Acid Decomposition ◽  
Elimination Kinetics
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