4333-55-5Relevant academic research and scientific papers
Regioselective Diboron-Mediated Semireduction of Terminal Allenes
Gates, Ashley M.,Santos, Webster L.
, p. 4619 - 4624 (2019/12/11)
A method for the regioselective reduction of the terminal double bond of 1,1-disubstituted allenes has been developed. In the presence of a palladium catalyst, tetrahydroxydiboron and stoichiometric water, allene semireduction proceeds in high yield to afford Z-alkenes selectively.
Metal-free Mizoroki-Heck type reaction: A radical oxidative coupling reaction of 2-chloro-dithiane with substituted olefins
Du, Wenbin,Lai, Junshan,Tian, Lixia,Xie, Xingang,She, Xuegong,Tang, Shouchu
supporting information, p. 14017 - 14020 (2015/01/16)
An efficient metal-free Mizoroki-Heck type reaction of di- and tri-substituted alkenes with 2-chloro-dithiane has been developed under ambient pressure of air or using a relatively low loading of BF3·Et2O. This study represents a new environmentally friendly method for the syntheses of dithianyl-substituted alkene derivatives via a radical oxidative coupling process.
Arylcyclopropane Photochemistry. Effects of Electron-Donating and Electron-Withdrawing Aromatic Substituents on the Photochemical Rearrangements of 1,1-Diarylcyclopropanes.
Hixson, Stephen S.,Franke, Lothar A.
, p. 2706 - 2711 (2007/10/02)
Irradiation of 1,1-diarylcyclopropanes 4a-g, having substituents X and Y at the para positions of the aromatic rings, afforded 1,1-diarylpropenes 5a-g and 1-arylindans 6a-f.The rate constants of these (singlet state) reactions, determined from the reactan
ARYLCYCLOPROPANE PHOTOCHEMISTRY. SUBSTITUENT EFFECTS ON THE PHOTOCHEMICAL CONVERSION OF 1,1-DIARYLCYCLOPROPANES TO 1,1-DIARYLPROPENES AND 1-ARYLINDANES.
Hixson, Stephen S.,Franke, Lothar A.
, p. 41 - 44 (2007/10/02)
The rate of photochemical rearrangement of 1,1-diarylcyclopropanes to 1,1-diarylpropenes and 1-arylindanes is enhanced by electron-withdrawing groups on the aromatic rings and diminished by electron-donating groups.
A NOVEL ORTHO-SUBSTITUENT EFFECT ON FORMATION OF VINYL CATIONS IN THE PHOTOLYSIS OF VINYL BROMIDES
Kitamura, Tsugio,Muta, Tomonobu,Kobayashi, Shinjiro,Taniguchi, Hiroshi
, p. 643 - 644 (2007/10/02)
Introduction of a substituent into ortho-position of β-aryl group in a vinyl bromide resulted in the preferential formation of a vinyl cation in the photolysis.It is considered that the steric repulsion of β-aryl groups makes a convenient conformation for an electron transfer from the aromatic ring to the halogen atom in the radical pair.
η2-BENZOPHENOZIRCONOCEN, EIN MODELL FUER DAS REACTIONSVERHALTEN EINES METALLAOXIRANS?
Erker, Gerhard,Rosenfeldt, Frank
, p. 29 - 42 (2007/10/02)
Thermolysis of η2-benzoyl(phenyl)zirconocene yields the η2-benzophenonzirconocene complex 2, isolated as a dimer. 2 exhibits an ambivalent reactivity pattern.The formation of five-membered metallacycles from 2 and olefinic hydrocarbons possibly proceeds analogous to reactions of "normal" metal-olefin ?-complexes.However, both reactions with the electron-deficient olefins dimethylfumarate and -maleate and the behavior towards electrophilic and protic reagents as well as aromatic hydrocarbons might be interpreted in terms of a metallaoxirane-character of 2.
