Results 21 to 30 of about 580 (89)

Biotransformation of Bicyclic Halolactones with a Methyl Group in the Cyclohexane Ring into Hydroxylactones and Their Biological Activity

Molecules, 2016
The aim of this study was the chemical synthesis of a series of halo- and unsaturated lactones, as well as their microbial transformation products. Finally some of their biological activities were assessed. Three bicyclic halolactones with a methyl group
Katarzyna Wińska, Małgorzata Grabarczyk, Wanda Mączka, Barbara Żarowska, Gabriela Maciejewska, Katarzyna Dancewicz, Beata Gabryś, Antoni Szumny, Mirosław Anioł   +8 more
doaj   +1 more source

dl-2-Haloacid Dehalogenase fromPseudomonas sp. 113 Is a New Class of Dehalogenase Catalyzing Hydrolytic Dehalogenation Not Involving Enzyme-Substrate Ester Intermediate [PDF]

Journal of Biological Chemistry, 1999
DL-2-Haloacid dehalogenase from Pseudomonas sp. 113 (DL-DEX 113) catalyzes the hydrolytic dehalogenation of D- and L-2-haloalkanoic acids, producing the corresponding L- and D-2-hydroxyalkanoic acids, respectively. Every halidohydrolase studied so far (L-2-haloacid dehalogenase, haloalkane dehalogenase, and 4-chlorobenzoyl-CoA dehalogenase) has an ...
V, Nardi-Dei, T, Kurihara, C, Park, M, Miyagi, S, Tsunasawa, K, Soda, N, Esaki   +6 more
openaire   +2 more sources

Lactones with Methylcyclohexane Systems Obtained by Chemical and Microbiological Methods and Their Antimicrobial Activity

Molecules, 2015
Eight new lactones (δ-chloro-, δ-bromo- and δ-iodo-γ-lactones), each with a methylcyclohexane ring, were obtained by chemical means from (4-methylcyclohex-2-en-1-yl) acetic acid or (6-methylcyclohex-2-en-1-yl) acetic acid.
Małgorzata Grabarczyk, Katarzyna Wińska, Wanda Mączka, Anna K. Żołnierczyk, Barbara Żarowska, Mirosław Anioł   +5 more
doaj   +1 more source

Reductive dechlorination of 2,4-dichlorobenzoate to 4-chlorobenzoate and hydrolytic dehalogenation of 4-chloro-, 4-bromo-, and 4-iodobenzoate by Alcaligenes denitrificans NTB-1 [PDF]

Applied and Environmental Microbiology, 1987
Alcaligenes denitrificans NTB-1, previously isolated on 4-chlorobenzoate, also utilized 4-bromo-, 4-iodo-, and 2,4-dichlorobenzoate but not 4-fluorobenzoate as a sole carbon and energy source. During growth, stoichiometric amounts of halide were released.
van den Tweel, W.J.J., Kok, J.B., de Bont, J.A.M.   +2 more
openaire   +2 more sources

Dehalogenases: From Improved Performance to Potential Microbial Dehalogenation Applications

Molecules, 2018
The variety of halogenated substances and their derivatives widely used as pesticides, herbicides and other industrial products is of great concern due to the hazardous nature of these compounds owing to their toxicity, and persistent environmental ...
Thiau-Fu Ang, Jonathan Maiangwa, Abu Bakar Salleh, Yahaya M. Normi, Thean Chor Leow   +4 more
doaj   +1 more source

Supramolecular Gels as Active Tools for Reaction Engineering

Angewandte Chemie, Volume 137, Issue 24, June 10, 2025.
The unique combination of environments within gels, self‐assembled from low‐molecular‐weight gelators, offers the ability to control reactivity in new ways, achieving unique reaction outcomes, leading to the emerging concept of supramolecular gels as nanoreactors. Smart chemical engineering methods enable the use of such gels to fabricate materials and
David K. Smith
wiley   +2 more sources

Carbonylative Suzuki–Miyaura Coupling of 1‐Iodoglycals Mediated by the N‐Heterocyclic Carbene Catalyst PEPPSI: Preparation of C‐Acyl Glycosides

European Journal of Organic Chemistry, Volume 29, Issue 7, 23 February 2026.
A multicomponent carbonylative Suzuki–Miyaura reaction was developed for the synthesis of C‐acyl glycosides. Using Pyridine‐Enhanced Precatalyst Preparation, Stabilization, and Initiation (PEPPSI‐IPr) catalysis and Mo(CO)6 as a solid CO source, the reaction enables selective carbonylation of three components in synthetically useful yields, providing a ...
Eurípedes de Aguiar, Mônica F. Z. J. Toledo, Flávia Manarin, João H. de Araujo‐Neto, Milene M. Hornink, Hélio A. Stefani   +5 more
wiley   +1 more source

Bioinspired Design of Heterogenous Single‐Atomic‐Site Catalysts for Electrocatalysis and Photocatalysis

Advanced Materials, Volume 37, Issue 48, December 3, 2025.
This review gives a summary on the representative bioinspired single‐atomic‐site catalysts (SACs) and their applications in heterogeneous electrocatalysis and photocatalysis. The fundamentals of bioinspired design strategies are systematically discussed in the context of the first shell coordination, the second/long‐range coordination, and the outer ...
Ying Wang, Guangri Jia, Piaoping Yang, Linshan Zhang, Kwok‐Yin Wong   +4 more
wiley   +1 more source

Reagent Engineering for Group Transfer Biocatalysis

Angewandte Chemie, Volume 136, Issue 7, February 12, 2024.
Biocatalytic group transfer reactions can efficiently generate highly complex molecules under mild and environmentally friendly conditions. This Minireview highlights inspiring examples of the development of non‐natural donor reagents to power such enzymatic transformations, while discussing the design aspects behind the choice of reagent.
John H. Reed, Florian P. Seebeck
wiley   +2 more sources

Soil microbes in the Tibetan Plateau degrade polyvinyl chloride and harbor novel dehalogenase SerB

Environment International
Polyvinyl chloride (PVC) stands as the third most widely produced synthetic polymer plastic. However, investigations into its microbial degradation significantly trail those of polyethylene (PE) and polystyrene (PS).
Yuchao Jiang, Baotong Fu, Wei-Min Wu, Chunxiu Zhou, Aman Khan, Guorui Zhang, El-Sayed Salama, Byong-Hun Jeon, Maha Awjan Alreshidi, Chunjie Li, Huawen Han, Xiangkai Li   +11 more
doaj   +1 more source