Results 21 to 30 of about 166,028 (261)

Selective oxidation of some primary and secondary benzylic alcohols to the corresponding carbonyl compounds with a Cu(III) complex [PDF]

Journal of the Serbian Chemical Society, 2005
The selective oxidation of benzylic alcohols to the corresponding carbonyl compounds is described. In alkaline solution, the oxidation reagent potassium tetrasodium diperiodatocuprate(III) dodecahydrate (KNa4[Cu(HIO6)2]×12H2O) reacts with primary and ...
VLADAN KOSTIC, SLOBODAN NOVOKMET, ZORICA BUGARCIC   +2 more
doaj   +3 more sources

Analytical Methods for Atmospheric Carbonyl Compounds: A Review

Atmosphere
Atmospheric carbonyl compounds have significant impacts on the atmospheric environment and human health, making the selection of appropriate analytical techniques crucial for accurately detecting these compounds in specific environments.
Xiaoshuai Gao, Xin Zhang, Yan Nie, Jiemeng Bao, Junling Li, Rui Gao, Yunfeng Li, Wei Wei, Xiaoyu Yan, Yongxin Yan, Hong Li   +10 more
doaj   +1 more source

Characterizing carbonyl compounds and their sources in Fuzhou ambient air, southeast of China [PDF]

PeerJ, 2020
In recent years, ozone (O3) concentrations in the southeastern coastal areas of China have shown a gradual upward trend. As precursors and intermediates in the formation of O3, carbonyl compounds play key roles in the atmospheric photochemical oxidation ...
Zhen He, Xin Zhang, Yunfeng Li, Xuefen Zhong, Hong Li, Rui Gao, Jinjuan Li   +6 more
doaj   +2 more sources

Understanding Ozone Formation and Carbonyl Contributions in the Seoul Metropolitan Area

Aerosol and Air Quality Research, 2023
With strong air quality policies in place in China and South Korea in recent years, it is important to understand the changing situation to address the increasing surface ozone problem in Korea. We revisited the ozone formation condition and investigated
Seung-Ha Lee, Ji-Seon Lee, Hyung-Min Lee, Hyeong-Ahn Kwon, Caroline R. Nowlan, Gonzalo González Abad, Rokjin J. Park, Ji-Hoon Park, Soyoung Kang, Hye-Jung Shin, Dai-Gon Kim, Jung-Min Park   +11 more
doaj   +1 more source

Heterocycles Synthesis at Carbonylation of Acetylenic Compounds

Eurasian Chemico-Technological Journal, 2003
The carbonylation of unsaturated hydrocarbons, alcohols, organic halides and other substrates catalyzed by transition metals, salts of transition metals and organometallic complexes is a wide used synthesis method of new carbonyl, carboxyl and alkoxy ...
S.A. Vizer, K.B. Yerzhanov
doaj   +1 more source

Atmospheric carbonyl compounds are crucial in regional ozone heavy pollution: insights from the Chengdu Plain Urban Agglomeration, China [PDF]

Atmospheric Chemistry and Physics
Gaseous carbonyl compounds serve as crucial precursors and intermediates in atmospheric photochemical reactions, significantly contributing to ambient ozone formation.
J. Bao, J. Bao, X. Zhang, X. Zhang, Z. Wu, L. Zhou, J. Qian, Q. Tan, F. Yang, J. Chen, Y. Li, H. Liu, L. Deng, H. Li   +13 more
doaj   +1 more source

Polyfunctionalization of vicinal carbon centers and synthesis of unsymmetric 1,2,3,4-tetracarbonyl compounds

Nature Communications, 2023
The synthesis of polycarbonyl compounds featuring four or more carbonyl groups is a synthetic challenge for organic chemists. Here, the authors describe how unsymmetric polycarbonyl compounds bearing up to 4 adjacent carbonyl groups can be accessed ...
Luca De Angelis, Chao Pei, Ana L. Narro, Daniel Wherritt, Rene M. Koenigs, Michael P. Doyle   +5 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Transformation of Carbonyl Compounds into Dinitrobenzene Derivatives

CHIMIA, 1975
2-chloronitroethylene and its precursor, 2,2-dichloronitroethane transform the keto- and aldoenamines having a β-hydrogen atom into variously substituted dinitrobenzenes.
H.G. Viehe, R. Verbruggen
doaj   +1 more source