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Yonas Yohannes

Queen Mary University of London

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Publication

Featured researches published by Yonas Yohannes.

Enantiomer | 2002

The synthesis and structure of substituted dimenthyl malonate derivatives.

Gregory S. Coumbarides; Jason Eames; Majid Motevalli; Yonas Yohannes

A series of substituted dimenthyl malonate derivatives were efficiently synthesized from dimenthyl malonate using a deprotonation and alkylation strategy. The elucidation of the structure of these derivatives were determined by a combination of X-ray crystallography, NMR and IR spectroscopy.

Tetrahedron Letters | 2005

Efficient parallel resolution of an active ester of 2-phenylpropionic acid using quasi-enantiomeric Evans’ oxazolidinones

Gregory S. Coumbarides; Marco Dingjan; Jason Eames; Anthony Flinn; Julian Northen; Yonas Yohannes

Tetrahedron-asymmetry | 2007

Parallel kinetic resolution of 2-methoxy and 2-phenoxy-substituted carboxylic acids using a combination of quasi-enantiomeric oxazolidinones

Ewan Boyd; Sameer Chavda; Jason Eames; Yonas Yohannes

Tetrahedron Letters | 2005

Probing the resolution of 2-phenylpropanoyl chloride using quasi-enantiomeric Evans’ oxazolidinones

Gregory S. Coumbarides; Jason Eames; Anthony Flinn; Julian Northen; Yonas Yohannes

Tetrahedron-asymmetry | 2007

Parallel kinetic resolution of racemic oxazolidinones using quasi-enantiomeric active esters

Ewan Boyd; Elliot Coulbeck; Gregory S. Coumbarides; Sameer Chavda; Marco Dingjan; Jason Eames; Anthony Flinn; Majid Motevalli; Julian Northen; Yonas Yohannes

Tetrahedron-asymmetry | 2006

Synthesis, characterisation and application of enantiomeric isotopomers of Evans' oxazolidinones

Ewan Boyd; Sameer Chavda; Elliot Coulbeck; Gregory S. Coumbarides; Marco Dingjan; Jason Eames; Anthony Flinn; Aarti K. Krishnamurthy; Mariam Namutebi; Julian Northen; Yonas Yohannes

Tetrahedron-asymmetry | 2006

Investigations into the parallel kinetic resolution of 2-phenylpropanoyl chloride using quasi-enantiomeric oxazolidinones

Sameer Chavda; Elliot Coulbeck; Gregory S. Coumbarides; Marco Dingjan; Jason Eames; Stephanos Ghilagaber; Yonas Yohannes

Tetrahedron-asymmetry | 2011

Efficient parallel resolution of pentafluorophenyl active esters using quasi-enantiomeric combinations of oxazolidin-2-ones

Najla Al Shaye; Sameer Chavda; Elliot Coulbeck; Jason Eames; Yonas Yohannes

Tetrahedron-asymmetry | 2011

Resolution of pentafluorophenyl 2-phenylpropanoate using combinations of quasi-enantiomeric oxazolidin-2-ones

Najla Al Shaye; David M. Benoit; Sameer Chavda; Elliot Coulbeck; Marco Dingjan; Jason Eames; Yonas Yohannes

Chirality | 2007

Synthesis of enantiomerically pure isotopomers of 2-phenylpropionic acids

Sameer Chavda; Gregory S. Coumbarides; Marco Dingjan; Jason Eames; Anthony Flinn; Stephanos Ghilagaber; Julian Northen; Yonas Yohannes

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Jason Eames

University of Hull

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Gregory S. Coumbarides

Queen Mary University of London

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Marco Dingjan

Queen Mary University of London

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Sameer Chavda

University of Hull

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Majid Motevalli

Queen Mary University of London

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Elliot Coulbeck

University of Hull

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Ewan Boyd

Syngenta

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Najla Al Shaye

University of Hull

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Stephanos Ghilagaber

Queen Mary University of London

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Nela Malatesti

Josip Juraj Strossmayer University of Osijek

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