Results 261 to 270 of about 39,317 (310)

Modeling Cometabolism of Cyclic Ethers

Environmental Engineering Science, 2002
The biodegradation kinetics of a mixed culture with the ability to cometabolically degrade 1,4-dioxane in the presence of tetrahydrofuran (THF) were studied using a previously published model.
Matthew J. Zenker, Robert C. Borden, Morton A. Barlaz   +2 more
openaire   +1 more source

Anionic copolymerization of cyclic ethers with cyclic anhydrides

1984
This article summarizes and analyzes the results obtained for the anionic copolymerization of cyclic ethers with cyclic anhydrides. This reaction is of great practical importance, especially as curing reaction of epoxy resins and is also used for the preparation of linear polyesters with special functional pendant groups.
Jozef Lustoň, František Vašš
openaire   +1 more source

Polymerization of cyclic imino ethers

Journal of Colloid and Interface Science, 1969
Abstract Critical surface tensions ( γ e ) of a series of crystalline poly ( N -acyl ethyleneimines) and poly( N -benzoyl ethyleneimine) were measured. The polymers with aliphatic side chains had γ e dropping from 24.5 to 22 dynes/cm as the side chain lengthened from butyryl to stearoyl. This shows that the surfaces of the polymers comprise close
Morton Litt, Jack Herz
openaire   +1 more source

Photoreactions of benzonitrile with cyclic enol ethers

Tetrahedron, 1987
Abstract Upon irradiation, cyclic enol ethers such as 1-methoxy-cyclopentene (4) mainly add across the cyano group of benzonitrile (1), under formation of 2-azabutadienes of an imidoester type. This is in agreement with the so-called Δ G-correlation which was reported earlier (ref. 5 and 6).
Mattay, Jochen, RUNSINK, J, HECKENDORN, R, WINKLER, T   +3 more
openaire   +2 more sources

Synthesis of cyclic precursors of poly(ether ether ketone)

Polymer Bulletin, 1999
A novel synthetic route to cyclic PEEK precursors is described. These new cyclic oligomers have been prepared from hydroquinone and N-phenyl(4,4'-difluorodiphenyl) ketimine. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) analysis unambiguously confirmed the cyclic nature.
Yinghua Qi, Tianlu Chen, Jiping Xu
openaire   +1 more source

Synthesis of cyclic and acyclic enol ethers (vinyl ethers)

The Journal of Organic Chemistry, 1993
A general method has been developed for the conversion of both cyclic and acyclic acetals of cyclic ketones, acyclic ketones, and aldehydes into enol ethers through treatment of the acetal with trimethylsilyl triflate in the presence of N,N-diisopropylethylamine.
Paul G. Gassman, Stephen J. Burns, Keith B. Pfister   +2 more
openaire   +1 more source

Steroidal cyclic ethers

Journal of Medicinal Chemistry, 1969
P, Kurath, R, Oslapas
openaire   +2 more sources

Catalytic Reduction of Cyclic Ethers with Hydrosilanes

Chemistry – An Asian Journal, 2019
AbstractCatalytic reductive transformations of ethers as a synthetic building block are an important class of chemical reactions because a range of essential chemical feedstocks and fuels in contemporary life can be prepared through the key step of ethereal C−O bond cleavage of cellulosic biomass.
openaire   +2 more sources

Polymerization and copolymerization of cyclic imino-ethers

Pure and Applied Chemistry, 1974
Abstract
openaire   +1 more source

Perfluorinated Cyclic Ethers

Journal of the American Chemical Society, 1952
Albert L. Henne, Sidney B. Richter
openaire   +1 more source