Direct and Stereoselective Alkylation of Nitro Derivatives with Activated Alcohols in Trifluoroethanol
作者:Diego Petruzziello、Andrea Gualandi、Stefano Grilli、Pier Giorgio Cozzi
DOI:10.1002/ejoc.201201345
日期:2012.12
benzylic, benzhydrylic, and propargylic alcohols in trifluoroethanol. A variety of different nitroalkanes bearing functional groups can be used in this SN1-typereaction to afford the desired products in quantitative yields. Different chiral nitro derivatives were submitted to this highly diastereoselective alkylation reaction with selected benzhydrols. A new, effective, and chiral pyrrolidine organocatalyst
Regioselective and solvent-free arylation of β-nitrostyrenes with mono- and dialkyl anilines
作者:Mohammad A. Ranjbari、Hossein Tavakol、Meghmik Manoukian
DOI:10.1007/s11164-020-04294-6
日期:2021.2
for alkylation of N,N-dialkylanilines with substituted β-nitrostyrenes using 10 mol% of choline chloride-zinc chloride deep eutectic solvent at 70 °C. The reaction was highly regioselective and only para-substituted products have been prepared. Despite the sensitivity and weak reactivity of the aniline derivatives for the Friedel–Crafts reaction in acidic media, the presented procedure was successfully