Results 1 to 10 of about 628 (156)

Optimized enantioselective (S)-2-hydroxypropiophenone synthesis by free- and encapsulated-resting cells of Pseudomonas putida [PDF]

open access: yesMicrobial Cell Factories, 2023
Background Aromatic α-hydroxy ketones, such as S-2-hydroxypropiophenone (2-HPP), are highly valuable chiral building blocks useful for the synthesis of various pharmaceuticals and natural products.
Reihaneh Kordesedehi   +4 more
doaj   +2 more sources

Enhanced chaotrope tolerance and (S)‐2‐hydroxypropiophenone production by recombinant Pseudomonas putida engineered with Pprl from Deinococcus radiodurans [PDF]

open access: yesMicrobial Biotechnology
Pseudomonas putida is a soil bacterium with multiple uses in fermentation and biotransformation processes. P. putida ATCC 12633 can biotransform benzaldehyde and other aldehydes into valuable α‐hydroxyketones, such as (S)‐2‐hydroxypropiophenone. However,
Reihaneh Kordesedehi   +4 more
doaj   +2 more sources

Derivatives of Natural Organocatalytic Cofactors and Artificial Organocatalytic Cofactors as Catalysts in Enzymes [PDF]

open access: yesChembiochem, 2022
Catalytically active non‐metal cofactors in enzymes carry out a variety of different reactions. The efforts to develop derivatives of naturally occurring cofactors such as flavins or pyridoxal phosphate and the advances to design new, non‐natural ...
Lechner, Horst, Oberdorfer, Gustav
core   +3 more sources

Spectroscopic Behaviour of Copper(II) Complexes Containing 2-Hydroxyphenones [PDF]

open access: yesMolecules, 2022
Theoretical investigations by density functional theory (DFT) and time-dependent DFT (TD-DFT) methods shed light on how the type of ligand or attached groups influence the electronic structure, absorption spectrum, electron excitation, and ...
Chiyindiko, Emmie   +2 more
core   +2 more sources

Atypical McMurry Cross-Coupling Reactions Leading to a New Series of Potent Antiproliferative Compounds Bearing the Key [Ferrocenyl-Ene-Phenol] Motif [PDF]

open access: yesMolecules, 2014
In the course of the preparation of a series of ferrocenyl derivatives of diethylstilbestrol (DES), in which one of the 4-hydroxyphenyl moieties was replaced by a ferrocenyl group, the McMurry reaction of chloropropionylferrocene with a number of mono ...
Baur   +24 more
core   +7 more sources

Mixed ligand complexes of alkaline earth metals: Part XII. Mg(II), Ca(II), Sr(II) and Ba(II) complexes with 5-chlorosalicylaldehyde and salicylaldehyde or hydroxyaromatic ketones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
The reactions of alkaline earth metal chlorides with 5-chlorosalicylaldehyde and salicylaldehyde, 2-hydroxyacetophenone or 2-hydroxypropiophenone have been carried out in 1 : 1 : 1 mole ratio and the mixed ligand complexes of the type MLL’(H2O)2 (where M
MITHLESH AGRAWAL   +2 more
doaj   +3 more sources

Schiff base ligand derived from (±)trans-1,2-cyclohexanediamine and its Cu(II), Co(II), Zn(II) and Mn(II) complexes: Synthesis, characterization, styrene oxidation and hydrolysis study of the imine bond in Cu(II) Schiff base complex [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
A Schiff base ligand (H2L) derived from 2´-hydroxypropiophenone and (±)trans-1,2-cyclohexanediamine was synthesized. The reactions of MCl2.xH2O (M =Cu(II), Co(II), Zn(II) and Mn(II))with the di-Schiff base ligand (H2L) were studied.
Sarkheil Marzieh, Lashanizadegan Maryam
doaj   +1 more source

Comparative radiological features of disseminated disease due to vs non-mycobacteria among AIDS patients in Brazil [PDF]

open access: yes, 2008
Background: Disseminated mycobacterial disease is an important cause of morbidity and mortality in patients with HIV-infection. Nonspecific clinical presentation makes the diagnosis difficult and sometimes neglected. Methods: We conducted a retrospective
Rodrigo P dos Santos   +51 more
core   +1 more source

Photoinduced oxidation of sea salt halides by aromatic ketones: a source of halogenated radicals [PDF]

open access: yes, 2009
The interactions between triplet state benzophenone and halide anion species (Cl<sup&minu;</sup>, Br<sup&minu;</sup> and I<sup&minu;</sup> have been studied by laser flash photolysis (at 355 nm) in aqueous solutions
A. Jammoul   +3 more
core   +4 more sources

Métodos convencionais e moleculares para o diagnóstico da tuberculose pulmonar: um estudo comparativo Conventional and molecular techniques in the diagnosis of pulmonary tuberculosis: a comparative study

open access: yesJornal Brasileiro de Pneumologia, 2008
OBJETIVO: Comparar quatro métodos laboratoriais no diagnóstico de tuberculose pulmonar. MÉTODOS: Foram realizadas pesquisa direta pelas colorações de Ziehl-Neelsen e auramina, cultura para micobactérias em meio Löwenstein-Jensen (LJ) e polymerase chain ...
Stella Sala Soares Lima   +5 more
doaj   +1 more source

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