benzenetellurolate anion to afford α,α′-bis(phenyltelluro)-o-xylene, which did not give o-quinodimethane under identical conditions. It is likely that the reaction proceeds through nucleophilic attack of benzenetellurolate anion at the tellurium atom of α-halo-α′-phenyltelluro-o-xylene which is formed in situ by the substitution of one of the halogen atoms of the starting α,α′-dihalo-o-xylene with the benzenetellurolate
Half-Sandwich Rhodium/Iridium(III) Complexes Designed with Cp* and 1,2-Bis(phenylchalcogenomethyl)benzene as Catalysts for Transfer Hydrogenation in Glycerol
作者:Om Prakash、Kamal Nayan Sharma、Hemant Joshi、Pancham L. Gupta、Ajai K. Singh
DOI:10.1021/om500149n
日期:2014.5.27
glycerol, which acts as a solvent and hydrogen source. Complexes 1–2 are the first examples of Rh species explored for TH in glycerol. The catalysis appears to be homogeneous. The complexes of the (Se, Se) ligand are marginally efficient than the corresponding complexes of the (S, S) ligand. The reactivity of Rhcomplexes in comparison to those of Ir also appears to be somewhat more. The results of DFT
The flash vacuum pyrolysis of benzyl phenyl selenides gave bibenzyls and diphenyl diselenide in excellent yields. This type of reaction was successfully applied to the synthesis of the title compounds.
KrF excimer laser photolysis of 1,2-bis(substituted-methyl)benzenes in the presence of alkenes and acetylene; two-photon formation of o-quinodimethane and its cycloaddition with dienophiles
作者:Akihikio Ouchi、Yoshinori Koga
DOI:10.1039/cc9960002075
日期:——
o-Quinodimethane 3 is generated effectively by Krf excimer laser (248 nm) photolysis of 1,2-bis(phenoxymethyl)-, 1,2-bis(phenylthiomethyl)- and 1,2-bis(phenylselenomthyl)-benzene via a two-photon process; cycloaddition of 3 with several dienophiles gives corresponding adducts in a maximum yield of 48%.
A Facile Synthesis of Tetra- and Dihydronaphthalene Derivatives by Excimer Laser Photolysis of 1,2-Bis(substituted-methyl)benzenes in the Presence of Olefins and Acetylene
作者:Akihiko Ouchi、Yoshinori Koga
DOI:10.1021/jo970953o
日期:1997.10.1
laser photolyses of 1,2-bis(phenoxymethyl)benzene (1-O), 1,2-bis[(phenylthio)methyl]benzene (1-S), and 1,2-bis[(phenylseleno)methyl]benzene (1-Se) in acetonitrile solutions via a two-photon process, which was followed by cycloaddition of 3A with several dienophiles-maleic anhydride (4a), dimethyl maleate (4b), dimethylfumarate (4c), fumaronitrile (4d), and dimethyl acetylenedicarboxylate (4e)-to give corresponding