REDUCTION OF ORGANIC COMPOUNDS WITH LOW-VALENT NIOBIUM (NbCl<sub>5</sub>/NaAlH<sub>4</sub>)
作者:Mitsuyoshi Sato、Koichiro Oshima
DOI:10.1246/cl.1982.157
日期:1982.2.5
Carbonyl compounds have been deoxygenatively dimerized to alkenes with the title reagent. Deoxygenation of epoxides to alkenes, reductive coupling of allylic and benzylic alcohols to hydrocarbons, and reduction of alkynes to alkenes are also described.
A Clean and Selective Radical Homocoupling Employing Carboxylic Acids with Titania Photoredox Catalysis
作者:David W. Manley、John C. Walton
DOI:10.1021/ol502625w
日期:2014.10.17
A titania photoredox catalysis protocol was developed for the homocoupling of C-centered radicals derived from carboxylicacids. Intermolecular reactions were generally efficient and selective, furnishing the desired dimers in good yields under mild neutral conditions. Selective cross-coupling with two acids proved unsuccessful. An intramolecular adaptation enabled macrocycles to be prepared, albeit