Tetrahedron Letters p. 711 - 714 (1998)
Update date:2022-08-29
Topics:
Sforza, Stefano
Dossena, Arnaldo
Corradini, Roberto
Virgili, Eliana
Marchelli, Rosangela
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-.
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