Results 61 to 70 of about 17,373 (214)

Highly-functionalised difluorinated cyclohexane polyols via the Diels–Alder reaction : regiochemical control via the phenylsulfonyl group [PDF]

open access: yes, 2005
A difluorinated dienophile underwent cycloaddition reactions with a range of furans to afford cycloadducts whichcould be processed regio- and stereoselectively via episulfonium ions, generated by the reaction between their alkenyl groups and ...
Crowley, Patrick J   +5 more
core   +1 more source

1,5-Induction in reactions between 2-alkoxy-(2-tributylstannylethylidene)cyclohexanes and aldehydes

open access: yesJournal of the Brazilian Chemical Society, 2001
2-Methoxy(2-tributylstannylethylidene)cyclohexane 16 undergoes stereoselective transmetalation on treatment with tin(IV) chloride to generate the allyltin trichloride 19 which reacts with aldehydes to give the (Z)-(3-hydroxyalkylidene)-2 ...
Kumar Poonam   +2 more
doaj  

Pushing the limits of concertedness. A waltz of wandering carbocations. [PDF]

open access: yes, 2019
Among the array of complex terpene-forming carbocation cyclization/rearrangement reactions, the so-called "triple shift" reactions are among the most unexpected.
Castiñeira Reis, Marta   +3 more
core  

Nitromethane conjugate addition to 2-[(1E,3E)-4-arylbuta-1,3-dien-1-yl]-4Hchromen- 4-ones [PDF]

open access: yes, 2017
Chromone are a group of oxygen-containing heterocycles, which are often associated to important biological activities.1 Chromone derivatives are also seen as interesting scaffolds to input further functionalizations,2 most of them through chemical ...
Albuquerque, Hélio   +3 more
core   +1 more source

Fluorescent sensing of maleate versus fumarate by a neutral cyclohexane based thiourea receptor [PDF]

open access: yes, 2006
A new cyclohexyl based fluorescent anion receptor, is able to recognize maleate versus fumarate both as their TMA salts.Costero Nieto, Ana Maria, Ana.Costero@uv.es ; Colera Llavata, Manuel, Manuel.Colera@uv.es ; Gaviña Costero, Pablo, Pablo.Gavina@uv.es ;
Colera Llavata, Manuel   +3 more
core   +2 more sources

New data on geochemistry and petrology of Topolninsky Chemical composition of petroleum of Krapivinskoe oilfield

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
Relevance of the work is caused by the need to obtain the detailed information on hydrocarbon compositions and molecule structures of resin-asphaltene components in petroleum from Krapivinskoye oilfield to solve the problems arising at its production ...
Altynay Torlomoeva   +3 more
doaj   +2 more sources

Initial Characterization of Low Molecular Weight Hydrocarbons in an Oil Sands Pit Lake

open access: yesEarth
Water-capped tailings technology (WCTT) is a strategy where oil sand tailings are sequestered within a mined-out pit and overlayed with a layer of water in order to sequester tailings with the aim that the resulting pit lake will support aquatic plants ...
Han Bao   +3 more
doaj   +1 more source

Spectroscopic Conformational Analysis of Some 1,2-Dihalogeno Cyclohexanes. [PDF]

open access: bronze, 1957
P. Klæboe   +4 more
openalex   +1 more source

Supramolecular Polymerization of all-cis-Fluorinated Cyclohexanes: Influence of Side Chains

open access: yesOrganic Materials, 2023
Shyamkumar V. Haridas   +2 more
doaj   +1 more source

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