scholarly journals Stereoelectronic effects in the reaction of aromatic substrates catalysed by Halomonas elongata transaminase and its mutants

2016 ◽  
Vol 14 (39) ◽  
pp. 9306-9311 ◽  
Author(s):  
Martina Letizia Contente ◽  
Matteo Planchestainer ◽  
Francesco Molinari ◽  
Francesca Paradisi
Keyword(s):  
Stereoelectronic Effects ◽  
Aromatic Substrates ◽  
Halomonas Elongata

scholarly journals Facilitating Ferration of Aromatic Substrates Through Intramolecular Sodium Mediation

2021 ◽  
Author(s):  
Lewis Maddock ◽  
Manting Mu ◽  
Max Garcia-Melchor ◽  
Eva Hevia
Keyword(s):  
Aromatic Substrates

scholarly journals Isolation and characterization of salt-sensitive mutants of the moderate halophile Halomonas elongata and cloning of the ectoine synthesis genes.

1998 ◽  
Vol 273 (19) ◽  
pp. 11986
Author(s):  
David Cánovas ◽  
Carmen Vargas ◽  
Fernando Iglesias-Guerra ◽  
Laszlo N. Csonka ◽  
David Rhodes ◽  
...  
Keyword(s):  
Moderate Halophile ◽  
Isolation And Characterization ◽  
Halomonas Elongata ◽  
Ectoine Synthesis

scholarly journals Acid-catalysed Condensation of Ethyl 5-Acetoxymethyl-4-acetyl-3-methylpyrrole-2-carboxylate and its Analogues with Aromatic Substrates

1999 ◽  
Vol 23 (6) ◽  
pp. 352-353
Author(s):  
Laddawan Chunchatprasert ◽  
Patrick V. R. Shannon
Keyword(s):  
Aromatic Substrates

The 5-acetoxy-4-acetylpyrrole 1 and its derivatives show a range of reactivity towards various aromatic substrates giving pyrroloindoles and pyrrolo [3,2- b] carbazoles amongst other products.

scholarly journals Efficient Amino Donor Recycling in Amination Reactions: Development of a New Alanine Dehydrogenase in Continuous Flow and Dialysis Membrane Reactors

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 520
Author(s):  
David Roura Padrosa ◽  
Zoya Nisar ◽  
Francesca Paradisi
Keyword(s):  
Continuous Flow ◽  
Membrane Reactors ◽  
Dialysis Membrane ◽  
Widespread Application ◽  
Recycling System ◽  
Alanine Dehydrogenase ◽  
Halomonas Elongata ◽  
Amino Donor ◽  
Recycling Systems ◽  
Excellent Stability

Transaminases have arisen as one of the main biocatalysts for amine production but despite their many advantages, their stability is still a concern for widespread application. One of the reasons for their instability is the need to use an excess of the amino donor when trying to synthesise amines with unfavourable equilibria. To circumvent this, recycling systems for the amino donor, such as amino acid dehydrogenases or aldolases, have proved useful to push the equilibria while avoiding high amino donor concentrations. In this work, we report the use of a new alanine dehydrogenase from the halotolerant bacteria Halomonas elongata which exhibits excellent stability to different cosolvents, combined with the well characterised CbFDH as a recycling system of L-alanine for the amination of three model substrates with unfavourable equilibria. In a step forward, the amino donor recycling system has been co-immobilised and used in flow with success as well as re-used as a dialysis enclosed system for the amination of an aromatic aldehyde.

scholarly journals A General Protocol for Cu-Mediated Fluoro-deamination: Sandmeyer Fluorination of Diverse Aromatic Substrates

2021 ◽  
Vol 23 (3) ◽  
pp. 1011-1015
Author(s):  
R. Manuel Pérez-García ◽  
Gaute Grønnevik ◽  
Patrick J. Riss
Keyword(s):  
Aromatic Substrates

ChemInform Abstract: π-Complex Formation and Collapse in Electrophilic Halogenation of Aromatic Substrates.

ChemInform ◽  
1987 ◽  
Vol 18 (47) ◽  
Author(s):  
O. M. E. EL-DUSOUQUI ◽  
K. A. M. MAHMUD ◽  
Y. SULFAB
Keyword(s):  
Complex Formation ◽  
Aromatic Substrates ◽  
Π Complex

Product distribution in the metalation of some aromatic substrates with n-butyllithium

1968 ◽  
Vol 11 ◽  
pp. 209-216 ◽  
Author(s):  
David A. Shirley ◽  
James R. Johnson ◽  
John P. Hendrix
Keyword(s):  
Product Distribution ◽  
Aromatic Substrates
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