Reductive cleavage of N-substituted aromatic amides as tert-butyl acylcarbamatesElectronic supplementary information (ESI) available: reductive cleavage of N-substituted aromatic amides as tert-butyl acylcarbamates. See http://www.rsc.org/suppdata/p1/b1/b107330n/
作者:Ragnarsson, Ulf、Grehn, Leif、Maia, Hernani L.S.、Monteiro, Luis S.
DOI:10.1039/b107330n
日期:2002.12.17
N-benzyl carboxamides and in particular the corresponding tert-butyl acylcarbamates are reported. These compounds were required to study the postulated effect of various heterocycles (pyridine and pyrazine with and without condensed benzene rings) on the cleavage of acyl–N bonds by reduction. All compounds were initially characterized by cyclic voltammetry (CV) which indicated various degrees of facilitated
Synthesis of Sulfoxonium Ylides from Amides by Selective N–C(O) Activation
作者:Md. Mahbubur Rahman、Michal Szostak
DOI:10.1021/acs.orglett.1c01535
日期:2021.6.18
The direct synthesis of sulfoxoniumylides from amides by selective N–C(O) cleavage is presented. The reaction proceeds through the nucleophilic addition of dimethylsulfoxonium methylide to the amide bond in acyclic twisted amides under exceedingly mild roomtemperature conditions. A variety of amides can be employed, and the protocol can be applied to the late-stage derivatization of pharmaceuticals