Photoiodocarboxylation of Activated C═C Double Bonds with CO<sub>2</sub> and Lithium Iodide
作者:Rossella Mello、Juan Camilo Arango-Daza、Teresa Varea、María Elena González-Núñez
DOI:10.1021/acs.joc.8b02162
日期:2018.11.2
The photolysis at 254 nm of lithium iodide and olefins 1 carrying an electron-withdrawing Z-substituent in CO2-saturated (1 bar) anhydrous acetonitrile at room temperature produces the atom efficient and transition metal-free photoiodocarboxylation of the C═C double bond. The reaction proceeds well for terminal olefins 1 to form the new C–I and C–C σ-bonds at the α and β-positions of the Z-substituent
Syntheses and Crystal Structures of Tungsten Complexes with Various Ligands Containing (1,3-Dithioliumyl)diphenylphosphine
作者:Kuang-Hway Yih、Gene-Hsiang Lee、Yu Wang
DOI:10.1021/om001032y
日期:2001.6.1
(2−5) (R = CH2C⋮CH; CH2C⋮CD; CH2C⋮N; CH(CH3)C⋮N) are accessible by the alkylation reactions of the complex [Et4N][W(CO)5PPh2CS2] (1) with unsaturated organic halides. Protonation of 2−5 with HBF4 at room temperature causes intramolecular cyclization to form the cationic complexes (6−9) (R, R‘ = H, CH3; H, CH2D; H, NH2; CH3, NH2). The complex (10) is produced by the reaction of 4 or 8 with Ph3CBF4. In complexes
Several low-molar-mass alkyl iodides were studied as initiating dormant species in living radicalpolymerization with organic catalysts. Primary, secondary, and tertiary alkyl iodides with different stabilizing groups (ester, phenyl, and cyano groups) were systematically studied for the rational design of initiating alkyl iodides. The activation rate constants of these alkyl iodides were experimentally