Results 21 to 30 of about 9,501 (197)

Enzymatic Nitrogen Incorporation Using Hydroxylamine

, 2023
Hydroxylamine-derived reagents have enabled versatile nitrene transfer reactions for introducing nitrogen-containing functionalities in small-molecule catalysis, as well as biocatalysis.
Dominic Rieger (16942355), Shilong Gao (159948), Frances H. Arnold (131156), Shilong Gao, Anuvab Das, Kathleen M. Sicinski (16942352), Frances H. Arnold, Anuvab Das (3758272), Kathleen M. Sicinski, Edwin Alfonzo (4037378), Edwin Alfonzo, Dominic Rieger   +11 more
core   +1 more source

Complexes of Formaldehyde and α-Dicarbonyls with Hydroxylamine: FTIR Matrix Isolation and Theoretical Study

Molecules, 2021
The interactions of formaldehyde (FA), glyoxal (Gly) and methylglyoxal (MGly) with hydroxylamine (HA) isolated in solid argon and nitrogen were studied using FTIR spectroscopy and ab initio methods.
Barbara Golec, Magdalena Sałdyka, Zofia Mielke   +2 more
doaj   +1 more source

Synthesis of Tricyclic Condensed Rings Incorporating the Pyrazole or Isoxazole Moieties Bonded to a 4-Piperidinyl Substituent

Molecules, 2013
In this paper we report the synthesis of new compounds based on the pyrazole and isoxazole framework fused to a cycloalkene unit, and bearing as a substituent the 1-piperidinyl group as new examples of potential antipsychotic molecules.
Giorgio Chelucci, Gérard A. Pinna, Giovanni Loriga, Giansalvo Pinna   +3 more
doaj   +1 more source

Four-Component Reaction between Ethyl Benzoylacetate, Hydroxylamine, Aldehydes and Malononitrile: Synthesis of Isoxazol-5(2H)-Ones [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2016
We present herein a new and efficient four-component synthesis of isoxazol-5(2H)-ones involving ring closing/Knoevenagel condensation/Michael addition sequential reactions.
Yaghoub Sarrafi, Mohammad Eghtedari
doaj  

Derivatization of Methylglyoxal for LC-ESI-MS Analysis—Stability and Relative Sensitivity of Different Derivatives

Molecules, 2018
The great research interest in the quantification of reactive carbonyl compounds (RCCs), such as methylglyoxal (MGO) in biological and environmental samples, is reflected by the fact that several publications have described specific strategies to perform
Stefan Fritzsche, Susan Billig, Robby Rynek, Ramarao Abburi, Elena Tarakhovskaya, Olga Leuner, Andrej Frolov, Claudia Birkemeyer   +7 more
doaj   +1 more source

Kinetic Model of Biphasic Character of Catalyse Inhibition

Nonlinear Analysis, 2003
A mathematical model of kinetics of fungal catalase inhibition with hydroxylamine in presence of substrate (hydrogen peroxide) has been developed. The scheme includes an intermediate formation and slow reversible native enzyme production.
J. Kulys, K. Kriaučiūnas, R. Vidžiūnaitė   +2 more
doaj   +1 more source

Hydroxylamine metabolism of Ca. Kuenenia stuttgartiensis

, 2020
Hydroxylamine is a key intermediate in several biological reactions of the global nitrogen cycle. However, the role of hydroxylamine in anammox is still not fully understood.
Warmerdam, Marieke, Pérez, Julio, Laureni, M. (author), Pérez, Julio (author), van Loosdrecht, Mark C.M. (author), Soler Jofra, A., Soler Jofra, A. (author), van Loosdrecht, Mark C.M., Warmerdam, Marieke (author), Laureni, M.   +9 more
core   +2 more sources

Data from "A bodipy based hydroxylamine sensor"

, 2017
This repository contains the experimental data discussed in the manuscript. Including, 1H NMR, 13C NMR (FID and PDF) and Mass Spectra for all the intermediates (A-H); probe 1; the hydroxylamine nitrone cyclic product; N-Methylhydroxylamine cyclic product;
James, Tony, Sedgwick, Adam
core   +2 more sources

Electrochemical Behavior of a Thio-Quinazoline Derivative Electrodeposited on a Glassy Carbon Electrode Modified with Multi-Wall Carbon Nanotubes: Application for Simultaneous Determination of Hydroxylamine and Nitrite

International Journal of Electrochemical Science, 2013
In this paper, we report the characteristics of a modified electrode prepared by electrodeposition of anthio-quinazoline derivative on the multi-wall carbon nanotubes modified glassy carbon electrode (QMWCNT-GCE).
M. Mehdi Aghayizadeh, Navid Nasirizadeh, S. Mansour Bidoki, M. Esmail Yazdanshenas   +3 more
doaj   +1 more source

Alcaligenes ammonioxydans HO-1 antagonizes Bacillus velezensis via hydroxylamine-triggered population response

Frontiers in Microbiology, 2022
Antagonism is a common behavior seen between microbes in nature. Alcaligenes ammonioxydans HO-1 converts ammonia to nitrogen under aerobic conditions, which leads to the accumulation of extracellular hydroxylamine (HA), providing pronounced growth ...
Xi-Yan Gao, Wei Xie, Wei Xie, Ying Liu, Lan Ma, Lan Ma, Zhi-Pei Liu   +6 more
doaj   +1 more source