Results 61 to 70 of about 5,243 (239)

Palladium-Catalyzed Oxidation of Boc-Protected N-Methylamines with IOAc as the Oxidant:  A Boc-Directed sp³ C−H Bond Activation

, 2016
Pd-catalyzed selective oxidation of Boc-protected N-methylamines with IOAc as the oxidant is described.
Jin-Quan Yu (1303500), Dong-Hui Wang (1525234), Di-Fu Wu (2534872), Xue-Shi Hao (2534875)   +3 more
core   +1 more source

One-pot two-step reduction of CO2 with amines and NaBH4 to N-substituted compounds at atmospheric pressure

Journal of CO2 Utilization
In this paper, the reductive N-formylation, methylation and cyclization of amines with carbon dioxide (CO2) using sodium borohydride (NaBH4) at atmospheric pressure, via a one-pot two-step procedure, is presented. Formato borohydride (NaBHn(OCHO)4-n), in
Junhong Wang, Bianling Wang, Xuehong Wei, Zhiqiang Guo   +3 more
doaj   +1 more source

Estimating the Lower Limit of the Impact of Amines on Nucleation in the Earth’s Atmosphere

Entropy, 2015
Amines, organic derivatives of NH3, are important common trace atmospheric species that can enhance new particle formation in the Earth’s atmosphere under favorable conditions.
Alexey B. Nadykto, Jason Herb, Fangqun Yu, Yisheng Xu, Ekaterina S. Nazarenko   +4 more
doaj   +1 more source

Characterization of Methanosarcina mazei JL01 Isolated from Holocene Arctic Permafrost and Study of the Archaeon Cooperation with Bacterium Sphaerochaeta associata GLS2^T

Proceedings, 2020
A mesophilic methanogenic culture, designated JL01, was isolated from Holocene permafrost in the Russian Arctic. After long-term extensive cultivation at 15 °C, it turned out to be a tied binary culture of archaeal (JL01) and bacterial (Sphaerochaeta ...
Viktoriia Oshurkova, Olga Troshina, Vladimir Trubitsyn, Yana Ryzhmanova, Olga Bochkareva, Viktoria Shcherbakova   +5 more
doaj   +1 more source

The effect of 3-nitrooxypropanol, a potent methane inhibitor, on ruminal microbial gene expression profiles in dairy cows

Microbiome, 2022
Background Enteric methane emissions from dairy cows are an environmental problem as well as a gross feed energy loss to the animal. Methane is generated in the rumen by methanogenic archaea from hydrogen (H2) + carbon dioxide and from H2 + methanol or ...
Dipti W. Pitta, Nagaraju Indugu, Audino Melgar, Alexander Hristov, Krishna Challa, Bonnie Vecchiarelli, Meagan Hennessy, Kapil Narayan, Stephane Duval, Maik Kindermann, Nicola Walker   +10 more
doaj   +1 more source

Nonthermal Plasma–Enabled Cascade N2 Activation and Electroreduction

EcoEnergy, EarlyView.
Integrating plasma‐assisted NOx synthesis with subsequent electrochemical reduction enables the sustainable synthesis of high‐value N‐containing chemicals under ambient conditions. ABSTRACT The development of sustainable nitrogen fixation technologies operating under ambient conditions is critical for reducing the energy intensity and carbon footprint ...
Shijia Li, Wei Gao, Ziyun Wang
wiley   +1 more source

Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide‐Dependent Design, Mechanisms, and Stability Challenges

EcoEnergy, EarlyView.
This Review highlights how metal halide perovskites enable coupled selective organic oxidation and hydrogen evolution under visible light. It summarizes halide‐dependent design principles, surface engineering strategies, reaction mechanisms, and stability challenges, providing guidance for developing efficient and durable photocatalytic systems ...
Jutarat Jitrada, Lizhen Liu, Patchanita Thamyongkit, Yanfa Yan, Jun Huang   +4 more
wiley   +1 more source

A Multiplexed Targeted Assay for High-Throughput Quantitative Analysis of Serum Methylamines by Ultra Performance Liquid Chromatography Coupled to High 2 Resolution Mass Spectrometry Short title: Multiplexed Analysis of Methylamines by UPLC-MS Cardiometab

, 2020
13 Methylamines are biologically-active metabolites present in serum and urine samples, which 14 play complex roles in metabolic diseases. Methylamines can be detected by proton nuclear 15 magnetic resonance (NMR), but specific methods remain to be ...
Jeremy K Nicholson, Dominique Gauguier, Suman Srinivasa, Kathleen V Fitch, Steven K Grinspoon, Jérémie Dutot, Hanane Kadar, Lyamine Hedjazi, Marc-Emmanuel Dumas, Justine Dubus   +9 more
core  

A Systematic Approach for Conceptual and Sustainable Process Design: Production of Methylamines From Methanol and Ammonia [PDF]

, 2012
Methylamines are very important chemicals as they are commonly used as intermediates for a wide range of agricultural chemicals, animal nutrients, catalysts, electronics, explosives, fuel additives as well as gas and oil treatments.
Almoor, Karim, Ismail, Muhammad Imran Bin, Mansouri, Seyed Soheil   +2 more
core  

Heats of adsorption of ammonia and the three methylamines on silica gel [PDF]

, 1934
The object of this investigation was the determination of the heats of adsorption of ammonia and the three methylamines on silica gel of different mesh sizes at 25°C. and 40°C. The heats of adsorption of the methylamines on any adsorbent are not recorded
Ashby, Carl Toliver
core   +1 more source