Results 321 to 330 of about 421,249 (354)

Assimilation of polybrominated diphenyl ethers from microplastics by the marine amphipod, Allorchestes compressa.

Environmental Science and Technology, 2014
Microplastic particles (MPPs;
Evan M. Chua, J. Shimeta, D. Nugegoda, P. Morrison, B. Clarke   +4 more
semanticscholar   +1 more source

Direct Radical Polymerization of Vinyl Ethers: Reversible Addition–Fragmentation Chain Transfer Polymerization of Hydroxy-Functional Vinyl Ethers

, 2016
Unprecedented controlled radical vinyl polymerization (CRP) of vinyl ethers using reversible addition–fragmentation chain transfer (RAFT) polymerization is reported.
S. Sugihara, Yukinori Kawamoto, Y. Maeda
semanticscholar   +1 more source

Rhodium-catalyzed borylation of aryl 2-pyridyl ethers through cleavage of the carbon-oxygen bond: borylative removal of the directing group.

Journal of the American Chemical Society, 2015
The rhodium-catalyzed reaction of aryl 2-pyridyl ethers with a diboron reagent results in the formation of arylboronic acid derivatives via activation of the C(aryl)-O bonds.
H. Kinuta, Mamoru Tobisu, N. Chatani
semanticscholar   +1 more source

Silver-Mediated Oxidative Trifluoromethylation of Phenols: Direct Synthesis of Aryl Trifluoromethyl Ethers.

Angewandte Chemie, 2015
Aryl trifluoromethyl ethers (ArOCF3 ) are prevalent in pharmaceuticals, agrochemicals, and materials. However, methods for the general and efficient synthesis of these compounds are extremely underdeveloped and limited.
Jian-Bo Liu, Chaoyue Chen, L. Chu, Zeng-Hao Chen, Xiuhua Xu, F. Qing   +5 more
semanticscholar   +1 more source

Transition Metal Catalyzed Synthesis of Arylamines and Aryl Ethers from Aryl Halides and Triflates: Scope and Mechanism.

Angewandte Chemie, 1998
Oxidative addition and reductive elimination are the central steps in new palladium-catalyzed chemistry that forms C-N and C-O bonds in arylamines and ethers. In the potential mechanism shown on the right the amine is formed by reductive elimination from
J. Hartwig
semanticscholar   +1 more source

Silver-Mediated Oxidative Trifluoromethylation of Alcohols to Alkyl Trifluoromethyl Ethers.

Organic Letters, 2015
The development of an efficient and practical method for the preparation of alkyl trifluoromethyl ethers is urgently demanding. The silver-mediated oxidative O-trifluoromethylation of primary, secondary, and tertiary alcohols with TMSCF3 under mild ...
Jian-Bo Liu, Xiuhua Xu, F. Qing
semanticscholar   +1 more source

Synthesis of unsymmetrical pyrazines based on α-diazo oxime ethers.

Organic Letters, 2015
Synthesis of unsymmetrically substituted pyrazines has been a challenge. The reactivity of α-imino carbenoids derived from α-diazo oxime ethers has been exploited for pyrazine synthesis, in which the reaction of α-diazo oxime ethers with 2H-azirines ...
Nicole S. Y. Loy, Sunggak Kim, Cheol‐Min Park   +2 more
semanticscholar   +1 more source

Trifluoromethyl ethers and -thioethers as tools for medicinal chemistry and drug discovery.

Current Topics in Medicinal Chemistry, 2014
The ever-growing number of fluorinated compounds in medicinal and agrochemical applications has led to a remarkable positive emulation in research. The last few years have been the witness of several advances in the search of more effective and user ...
G. Landelle, A. Panossian, F. Leroux
semanticscholar   +1 more source

Cleavage of Lignin-Derived 4-O-5 Aryl Ethers over Nickel Nanoparticles Supported on Niobic Acid-Activated Carbon Composites

, 2015
Cleavage of lignin-derived 4-O-5 aryl ethers has been conducted over nickel nanoparticles supported on niobic acid-activated carbon composite under mild conditions.
Shaohua Jin, Z. Xiao, Xiao Chen, Lei Wang, Jin Guo, Miao Zhang, Changhai Liang   +6 more
semanticscholar   +1 more source

Ethers and anhydro-sugars

ChemInform, 1990
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +3 more sources