Results 41 to 50 of about 38,935 (121)

Carbon isotope fractionation during abiotic reductive dehalogenation of trichloroethene (TCE)

open access: yes, 2001
Dehalogenation of trichloroethene (TCE) in the aqueous phase, either on palladium catalysts with hydrogen as the reductant or on metallic iron, was associated with strong changes in delta C-13.
Bill, M.   +11 more
core   +3 more sources

Advances Toward Amphidinolides C, F and U: Isolations, Synthetic Studies and Total Syntheses

open access: yesChemistry – A European Journal, Volume 30, Issue 27, May 14, 2024.
Amphidinolides C, F and U are a sub‐class of polyketides sharing a similar structure, isolated from dinoflagellates or octocoral sponges and exhibiting high cytotoxic activity. This review discloses the progress made in their isolations and structural determinations and the various synthetic approaches and successful attempts leading to their total ...
Ismaila Ciss   +3 more
wiley   +1 more source

Meta‐omics assisted microbial gene and strain resources mining in contaminant environment

open access: yesEngineering in Life Sciences, Volume 24, Issue 5, May 2024.
Abstract Human activities have led to the release of various environmental pollutants, triggering ecological challenges. In situ, microbial communities in these contaminated environments are usually assumed to possess the potential capacity of pollutant degradation.
Yiqun Huang   +5 more
wiley   +1 more source

Pure Water-Induced Dehalogenation of 2,4-Di-tert-amino-6-substituted-5-halogenopyrimidines

open access: yes, 2018
Dehalogenation of 5-halogenopyrimidine derivatives in boiling pure water was accomplished in high yields. The substrate and pure water are the only two reaction components in this process.
Mahsa Mousavi (5019053)   +3 more
core   +1 more source

Evolutionary obstacles and not C–F bond strength make PFAS persistent

open access: yesMicrobial Biotechnology, Volume 17, Issue 4, April 2024.
C–F bonds can be cleaved by microbes. However, evolution must overcome many obstacles to biodegrade PFAS. Abstract The fate of organic matter in the environment, including anthropogenic chemicals, is largely predicated on the enzymatic capabilities of microorganisms.
Lawrence P. Wackett
wiley   +1 more source

The 21-dehydroxglation of corticosteroids of Eubacterium lentum and the dehalogenation of 4-chlorobenzoic acid by 4-chlorobenzoate dehalogenase [PDF]

open access: yes, 1988
Two enzyme mechanisms were investigated: the 21-dehydroxylation of corticosteroids by Eubacterium lentum and the dehalogenation of 4-chlorobenzoic acid by Pseudomonas sp. CBS 3.
Ninniss, Ronald William.
core   +1 more source

Mechanisms of bacterially catalyzed reductive dehalogenation

open access: yes, 1992
Nine bacteria were tested for the ability to dehalogenate tetrachloromethane (CT), tetrachloroethene (PCE), and 1, 1, 1-trichloroethane (TCA) under anaerobic conditions. Three bacteria were able to reductively dehalogenate CT.
Picardal, Flynn William
core   +3 more sources

2.6 Carboxylation, Carbonylation, and Dehalogenation

open access: yes, 2018
This chapter describes the use of N-heterocyclic carbene–metal complexes in carboxylation, carbonylation, and dehalogenation reactions. Catalysts based on copper, gold, palladium, rhodium, and nickel are considered.
D. Nelson
core   +1 more source

Haloalkane hydrolysis by Rhodococcus erythropolis cells: Comparison of conventional aqueous phase dehalogenation and nonconventional gas phase dehalogenation [PDF]

open access: yes, 2004
Biofiltration of air polluted by volatile organic compounds is now recognized by the industrial and research communities as an effective and viable alternative to standard environmental technologies.
Erable, Benjamin   +4 more
core   +1 more source

Insights into the molecular mechanism of dehalogenation catalyzed by D-2-haloacid dehalogenase from crystal structures

open access: yes, 2018
D-2-haloacid dehalogenases (D-DEXs) catalyse the hydrolytic dehalogenation of D-2-haloacids, releasing halide ions and producing the corresponding 2-hydroxyacids.
Yayue Wang   +4 more
core   +1 more source

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