Results 71 to 80 of about 27,691 (270)

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source

Synthesis and Structural Characterisation of [Ir4(CO)8(CH3)(m4-h3-Ph2PCCPh)(m-PPh2)] and of the Carbonylation Product [Ir4(CO)8{C(O)CH3}(m4-h3-Ph2PCCPh)(m-PPh2)]; First Evidence for the Formation of a CO Cluster Adduct before CO Insertion

Journal of the Brazilian Chemical Society, 1999
Deprotonation of [(mu-H)Ir4(CO)10(mu-PPh2)], 1, gives [Ir4(CO)10(mu-PPh2)]- that reacts with Ph2PCCPh and CH3I to afford [Ir4(CO)8(CH3)(mu4-eta³-Ph2PCCPh)(mu-PPh2)], 2 (34%), besides [Ir4(CO)9(mu3-eta³-Ph2PC(H)CPh)(mu-PPh2)] and [(mu-H)Ir4(CO)9(Ph2PCºCPh)
Braga Dario, Fujiwara Fred Y., Grepioni Fabrizia, Pereira Regina M.S., Vargas Maria D.   +4 more
doaj  

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

EcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

A Modular Synthesis of Isoindole/Indolizine Hybrids via the 1,3‐Dipolar Cycloaddition of Pyridine‐Based Mesoionics with Benzyne

European Journal of Organic Chemistry, EarlyView.
An approach to prepare pyrido[2,1‐a]isoindoles via the cycloaddition of pyridine‐based 1,3‐dipoles and benzyne is described, offering modular access to a range of substituted products by systematic tuning of the dipole. A modular strategy for the synthesis of fused indolizine/isoindole hybrids, pyrido[2,1‐α]isoindoles, via cycloaddition of pyridine ...
Samira Taghizadeh Nodehi, Mohammad Ghanbari, Bruce A. Arndtsen   +2 more
wiley   +1 more source

Life cycle assessment of a microfluidic electrolytic cell using Bi–Sn nanoparticle catalyst and an ionic liquid electrolyte

Environmental Progress &Sustainable Energy, EarlyView.
Abstract The electrochemical reduction of carbon dioxide (CO2) to produce formic acid is a sustainable and crucial method for combating greenhouse gas emissions and addressing global warming. This study focuses on conducting a life cycle assessment of formic acid synthesis using microfluidic electrolytic cells with Bi–Sn catalyst and [EMIM][BF4] (1 ...
Akaninyene Christopher Offong, Abdulhakim Adeoye Shittu, Sunday Amos Onikanni, James Okpor   +3 more
wiley   +1 more source

Sustainable synthesis of quinazolinones: exploring multicomponent reactions with a novel magnetic palladium catalyst

Frontiers in Chemistry
This study introduces a sustainable and efficient method for synthesizing quinazolinones, a class of heterocyclic compounds with significant pharmaceutical applications, via a multicomponent reaction (MCR) strategy.
Xiaotong Liang, Ziqi Yang, Bo Li
doaj   +1 more source

PdI2-Based Catalysis for Carbonylation Reactions: A Personal Account

Catalysts, 2019
In this account, we review our efforts in the field of carbonylation reactions promoted by palladium iodide-based catalysts, which have proven to be particularly efficient in diverse kinds of carbonylation processes (oxidative carbonylations as well as ...
R. Mancuso, Nicola Della Ca’, Lucia Veltri, I. Ziccarelli, B. Gabriele   +4 more
semanticscholar   +1 more source

The Regulatory Role and Mechanism of Myoferlin in Mitophagy During Papillary Thyroid Carcinogenesis

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Papillary thyroid carcinoma (PTC) is the most prevalent subtype of thyroid cancer; however, the regulatory mechanisms by which mitophagy influences its progression remain inadequately elucidated. This study sought to examine the role of myoferlin (MYOF) in mitophagy and its molecular basis during PTC development. Utilizing three paired PTC and
Wen‐Chao Lyu, Yang‐Shuai Wang, Chun‐Yang Shang, Ming Qi, Tong‐Chang Li, Li‐Xin Lian, Hai‐Quan Qiao   +6 more
wiley   +1 more source

Protein Carbonylation [PDF]

Antioxidants & Redox Signaling, 2010
Y. J. Suzuki, M. Carini, D. A. Butterfield   +2 more
openaire   +2 more sources

Visible‐light‐promoted catalyst‐free benzylic C‐H oxidation using molecular oxygen as a green oxidant

Smart Molecules, EarlyView.
A green and simple photo‐oxygenation of benzylic C‐H bond with molecular oxygen was developed for the preparation of a series of carbonyl compounds. The straightforward C‐H carbonylation strategy features catalyst‐ and additive‐free reaction conditions, only oxygen as a green oxidant, broad scope and scalable, and the simple‐operation nature.
Jianing Li, Suwen Wang, Huinan Sun, Zhunchao Liu, Xiangmin Tian, Qilei Liu, Qingwei Meng   +6 more
wiley   +1 more source