Unsaturated enamides via organometallic addition to isocyanates: the synthesis of Lansamide-I, Lansiumamides A–C and SB-204900
作者:Ian Stefanuti、Stephen A Smith、Richard J.K Taylor
DOI:10.1016/s0040-4039(00)00477-9
日期:2000.5
Styryl Grignard addition to vinyl isocyanates is employed to prepare the naturally occurring enamides Lansamide-I, Lansiumamides A and B, and SB-204900; the synthesis of Lansiumamide C is also reported.
Synthesis of Linear Enamides and Enecarbamates
<i>via</i>
Photoredox Acceptorless Dehydrogenation
作者:Ritu、Daniel Kolb、Nidhi Jain、Burkhard König
DOI:10.1002/adsc.202201259
日期:2023.2.21
decatungstate (TBADT) as hydrogen atom transfer (HAT) agent and a cobaloxime co-catalyst for dihydrogen evolution for the dehydrogenative preparation of linear enamides and enecarbamates from saturated precursors. The substrate scope includes several natural products and drug derivatives. The reaction does not require noble metal catalysts, exhibits short reaction times compared to previous methods and is suitable