Results 301 to 310 of about 421,249 (354)
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Surveying macrocyclic chemistry: from flexible crown ethers to rigid cyclophanes
Chemical Society Reviews, 2017Macrocycles are molecular entities that display a combination of molecular recognition and complexation properties with vital implications for host-guest/supramolecular chemistry.
Zhichang Liu +2 more
exaly +2 more sources
Recent progress in the design and applications of fluorescence probes containing crown ethers
Chemical Society Reviews, 2017Crown ethers, discovered by the winner of the Nobel Prize Charles Pedersen, are cyclic chemical compounds that consist of a ring or multiple rings containing several ether groups that are capable of binding alkali ions.
Woo-dong Jang, Juyoung Yoon
exaly +2 more sources
The Diarylprolinol Silyl Ethers: Ten Years After
Angewandte Chemie - International Edition, 2015Asymmetric organocatalysis has experienced an incredible development since the beginning of this century. The expansion of the field has led to a large number of efficient types of catalysts.
Bjarke S Donslund, Karl Anker Jørgensen
exaly +2 more sources
Effect of dihydroxydiphenyl ether on poly(ether ether ketone) [PDF]
Journal of Polymer Research, 1996 A series of modified poly(ether ether ketone) (PEEK) polymers were synthesized by introduction of addition ether groups from dihydroxydiphenyl ether (DHDE) into the PEEK structure. The inherent viscosity of the DHDE-modified PEEK increased with reaction time at 320 °C.
Y. Z. Wang +5 more
openaire +1 more source
Polybrominated diphenyl ethers in the environment and in people: a meta-analysis of concentrations.
Environmental Science and Technology, 2004Polybrominated diphenyl ethers (PBDEs) are used as flame retardants in many types of consumer products. Perhaps as a result of their widespread use and their lipophilicity, these compounds have become ubiquitous in the environment and in people.
R. Hites
semanticscholar +1 more source
Bisphenols, Benzophenones, and Bisphenol A Diglycidyl Ethers in Textiles and Infant Clothing.
Environmental Science and Technology, 2017Little is known with regard to the occurrence of potentially toxic chemicals in textiles and clothes. In this study, 77 textiles and infant clothing pieces were analyzed for the determination of bisphenols including bisphenol A (BPA) and bisphenol S (BPS)
Jingchuan Xue, Wenbin Liu, K. Kannan
semanticscholar +1 more source
The role of crown ethers in drug delivery
Supramolecular chemistry (Print), 2019The unique structure of the crown ethers has attracted the attention of many scientists to the use of these compounds in organic synthesis, and drug delivery.
G. Chehardoli, Asrin Bahmani
semanticscholar +1 more source
ACS Sustainable Chemistry and Engineering, 2018
Catalytic transfer hydrogenolysis (CTH) of diphenyl ether (DPE), 2-phenethyl phenyl ether (PPE), and benzyl phenyl ether (BPE)—as model molecules of α-O-4 and β-O-4 as well as 4-O-5 lignin linkages—promoted by bimetallic Pd/Ni systems is reported. Pd/Ni (
F. Mauriello +4 more
semanticscholar +1 more source
Catalytic transfer hydrogenolysis (CTH) of diphenyl ether (DPE), 2-phenethyl phenyl ether (PPE), and benzyl phenyl ether (BPE)—as model molecules of α-O-4 and β-O-4 as well as 4-O-5 lignin linkages—promoted by bimetallic Pd/Ni systems is reported. Pd/Ni (
F. Mauriello +4 more
semanticscholar +1 more source
Synergistic Catalysis for the Umpolung Trifluoromethylthiolation of Tertiary Ethers.
Angewandte Chemie, 2018The first transition-metal-free, site-specific umpolung trifluoromethylthiolation of tertiary alkyl ethers has been developed, achieving the challenging tertiary C(sp3 )-SCF3 coupling under redox-neutral conditions.
Wentao Xu +5 more
semanticscholar +1 more source
Angewandte Chemie, 2018
Lignin is the second most abundant organic matter on Earth, and is an underutilized renewable source for valuable aromatic chemicals. For future sustainable production of aromatic compounds, it is highly desirable to convert lignin into value-added ...
Huiying Zeng +3 more
semanticscholar +1 more source
Lignin is the second most abundant organic matter on Earth, and is an underutilized renewable source for valuable aromatic chemicals. For future sustainable production of aromatic compounds, it is highly desirable to convert lignin into value-added ...
Huiying Zeng +3 more
semanticscholar +1 more source