Results 31 to 40 of about 12,704 (308)

Mild One-step Synthesis of Dibromo Compounds from Cyclic Ethers [PDF]

open access: yes, 2016
A novel one-step method for mildly converting cyclic ethers into dibromo compounds is reported. Alcohols, oximes, aldehydes, and ketones are known to react under Appel or Corey–Fuchs reaction conditions, but apparently these have never been applied to ...
Udo H. Brinker (1470559)   +1 more
core   +1 more source

Metal-Free Regioselective Cross Dehydrogenative Coupling of Cyclic Ethers and Aryl Carbonyls [PDF]

open access: yes, 2019
A highly regioselective, efficient, and metal-free oxidative cross dehydrogenative coupling (CDC) of aryl carbonyls with cyclic ethers has been developed. This method offers easy access to substituted α-arylated cyclic ethers with a high functional group
Kumar Vanka (1378884)   +3 more
core   +3 more sources

Lewis Acid-Initiated Ring-Opening Reactions of Five- and Six-Membered Cyclic Ethers Based on the Oxonium Ylide Intermediates

open access: yesOrganics
In light of the small ring strain of five/six-membered cyclic ethers, constructing complex molecules via ring-opening reactions has consistently been a highly challenging topic in organic synthesis.
Dandan Jiang   +5 more
doaj   +1 more source

Occupational exposure to glycidyl ethers [PDF]

open access: yes
"Glycidyl ethers are characterized by the presence of a three-carbon chain with an epoxide group and an ether linkage. This recommended standard applies to monoglycidyl ethers and diglycidyl ethers that contain an alkyl group, an aromatic group, or a ...

core   +1 more source

Insertion reactions of organochlorosilanes with cyclic ethers [PDF]

open access: yes, 1972
Phenyl glycidyl ether and allyl glycidyl ether (3-phenoxy- and 3-allyloxy-1,2-epoxypropane) cause fission of the silicon---chlorine bonds in a number of alkylchlorosilanes to form chloro-substituted alkoxysilanes.
Maire, J. C.   +3 more
core   +1 more source

Thermophysical properties of binary mixtures of N,N-dimethylformamide with three cyclic ethers [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
Densities and viscosities of the binary mixtures consisting of tetrahydrofuran (THF), 1,3-dioxolane (1,3-DO) and 1,4-dioxane (1,4-DO) with N,N-dimethylformamide (DMF) over the entire range of composition were measured at temperatures 298.15, 308.15 ...
Sinha Biswajit   +4 more
doaj   +1 more source

Iminoiodane- and Brønsted Base-Mediated Cross Dehydrogenative Coupling of Cyclic Ethers with 1,3-Dicarbonyl Compounds

open access: yesMolecules, 2015
A one-pot, two-step approach to prepare 2-tetrahydrofuran and -pyran substituted 1,3-dicarbonyl compounds by PhI=NTs-mediated amination/Brønsted base-catalyzed cross dehydrogenative coupling (CDC) reaction of the cyclic ether and 1,3-dicarbonyl ...
Ciputra Tejo   +6 more
doaj   +1 more source

Reactivity of Nitrovinylquinones with Cyclic and Acyclic Enol Ethers [PDF]

open access: yes, 2016
The nitrovinyl-substituted quinones 2-(2-nitrovinyl)-1,4-benzoquinone and 2-(2-nitrovinyl)-1,4-naphthoquinone react with a variety of cyclic and acyclic enol ethers via two competing pathways.
Brant L. Kedrowski (2431753)   +1 more
core   +1 more source

Carboazidation of Terminal Alkenes with Trimethylsilyl Azide and Cyclic Ethers Catalyzed by Copper Powder under Oxidative Conditions [PDF]

open access: yes, 2023
Copper-catalyzed carboazidation of alkenes with trimethylsilyl azide and cyclic ethers has been achieved. The employment of naturally abundant copper catalysts allowed cyclic ethers to be used as alkylating reagents under oxidative conditions. The use of
Yuichi Ikemoto (5368601)   +5 more
core   +1 more source

Identification and quantitation of lipid-bound short-chain diols

open access: yesJournal of Lipid Research, 1973
Procedures are described for the hydrolysis of neutral lipid fractions containing long-chain esters and alk-1-enyl ethers of short-chain diols, and for the identification and quantitation of the constituent diols as long-chain cyclic acetals using gas ...
E. Schupp, W.J. Baumann
doaj   +1 more source

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