42006-80-4Relevant articles and documents
Silica triflate as an efficient reagent for the chemoselective formylation of alcohols
Shirini, Farhad,Marjani, Katayoun,Nahzomi, Hossein Taherpour,Zolfigol, Mohammad Ali
, p. 1245 - 1251 (2007)
Silica triflate, as a new and stable silica-based reagent, is prepared by a reaction of silica gel with trifluoromethane sulfonyl chloride at room temperature. This reagent can be used for the efficient and selective formylation of alcohols in the presence of phenols in a relatively short reaction time and high yields under heterogeneous reaction conditions.
Mild and efficient procedure for acetylation and formylation of alcohols in the presence of Mg(HSO4)2
Shirini,Zolfigol,Mallakpour
, p. 625 - 626 (2007/10/03)
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Tf2O/Amide adducts: Versatile reagents for the synthesis of imidates and amidines
Sforza, Stefano,Dossena, Arnaldo,Corradini, Roberto,Virgili, Eliana,Marchelli, Rosangela
, p. 711 - 714 (2007/10/03)
The Vilsmeier reagents generated from tertiary and secondary aliphatic and aromatic amides and trifluoromethanesulfonic anhydride (Tf2O) reacted with different nucleophiles (ROH, RSH, RNH2) affording the relative iminium and amidinium salts. The former, stable at room temperature, were easily transformed into the corresponding esters or O-alkyl thioesters by treatment with OH- or SH-.