An efficient one-pot, purification-free, preparation of amides using polymer-supported reagents
作者:Marc Lannuzel、Marie Lamothe、Michel Perez
DOI:10.1016/s0040-4039(01)01387-9
日期:2001.9
A new one-pot method for amide preparation usingpolymer-supported carbodiimide is reported. It incorporated the use of HOBT to improve the reactivity of the supported reagent and expand the scope of this reaction. HOBT could then be subsequently easily removed from the medium with a supported carbonate base.
Mild Method for the Conversion of Amides to Thioamides
作者:André B. Charette、Michel Grenon
DOI:10.1021/jo0344485
日期:2003.7.1
Aqueous ammonium sulfide was found to be an ideal substitute for hydrogen sulfide for the thiolysis of activated amides. High yields of the corresponding thioamides were obtained for a broad range of substrates, using two different procedures that are both operationally simple and inexpensive, as well as amenable to large-scale preparation. Preliminary results indicate that aqueous ammonium sulfide