Results 241 to 250 of about 12,704 (308)

<i>O</i>-Trifluoromethylation of ketones: an alternative straightforward route to alkenyl trifluoromethyl ethers. [PDF]

Chem Sci
Gao C, Liu Y, Li CS, Guo H, Wang SH, Xu C, Wang M.   +6 more
europepmc   +1 more source

Oxidative benzylic C(sp³)-H functionalisation of electron-poor substrates with photoexcited DDQ. [PDF]

Chem Sci
Atkins AP, Smith CA, Ghosh D, Greene HJM, Binyahan RG, Greene CJ, Tate JA, Orr-Ewing AJ, Lennox AJJ.   +8 more
europepmc   +1 more source

Photoreactions of benzonitrile with cyclic enol ethers [PDF]

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
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The photoalkylation of cyclic ethers

Tetrahedron, 1967
Abstract The acetone, acetophenone and benzophenone-initiated photochemical alkylation of cyclic ethers with olefins is described. Alpha-alkylated cyclic ethers were obtained as the 1:1-adducts in yields of up to 40% with terminal olfeins, and yields of up to 82% with α,β-unsaturated esters.
I. Rosenthal, D. Elad
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Terpolymerization of Cyclic Ethers with Cyclic Anhydride

Journal of Macromolecular Science: Part A - Chemistry, 1973
Abstract A unique solution polymerization and polymer family have been discovered in the ring-opening terpolymerization of three heterocyclic monomers initiated by organometallic compounds, particularly trialkylaluminum. The products have repeating ether-ester-ester linkages along the chain and are alternating terpolymers, … ABCABCABC…, of three ...
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Dilithiated Synthons: Synthesis of Cyclic Ethers.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
F. Alonso, J. Meléndez, M. Yus
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Intercalation of Cyclic Ethers into Vanadyl Phosphate

Chemistry - A European Journal, 2002
Two cyclic ethers, tetrahydrofuran (THF) and tetrahydropyran (THP), were intercalated into vanadyl phosphate and characterized by X-ray powder diffraction, thermogravimetry, and IR and Raman spectroscopy. Both compounds contain one molecule of ether per formula unit of VOPO(4) and show high thermal stability in comparison with VOPO(4) intercalates with
Vítezslav, Zima, Klára, Melánová, Ludvík, Benes, Pavla, Capková, Miroslava, Trchová, Pavel, Matejka   +5 more
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Synthesis and Characterization of Novel Cyclic (Aryl Ether Ketone)s, Cyclic (Aryl Ether Phthalazine)s, and Cyclic (Aryl Ether Isoquinoline)s

Macromolecules, 1995
The efficient preparation of a range of cyclic (aryl ether ketone)s containing the 1,2-dibenzoylbenzene moiety via the nucleophilic aromatic substitution route with the use of the pseudo-high dilution principle was developed. Chemical transformation of the 1,2-dibenzoylbenzene moiety of these cyclic (aryl ether ketone)s led to the preparation of novel ...
Kwok P. Chan, Yi-Feng Wang, Allan S. Hay, Xiaoping L. Hronowski, Robert J. Cotter   +4 more
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Polymerization of Cyclic Ethers

Journal of Macromolecular Science: Part A - Chemistry, 1972
Abstract In the present series of studies on the cationic polymerization of cyclic ethers, the reactivities of cyclic ethers were quantified and the effect of the catalyst upon the polymerization kinetics was revealed. These kinetic analyses were successfully performed by means of our “phenoxyl end-capping method”.
openaire   +1 more source