作者:Alex W. Gregory、Alan Chambers、Alison Hawkins、Pavol Jakubec、Darren J. Dixon
DOI:10.1002/chem.201405256
日期:2015.1.2
A new chemoselective reductive nitro‐Mannich cyclization reaction sequence of nitroalkyl‐tethered lactams has been developed. Relying on the rapid and chemoselective iridium(I)‐catalyzed reduction of lactams to the corresponding enamine, subsequent nitro‐Mannich cyclization of tethered nitroalkyl functionality provides direct access to important alkaloid natural‐product‐like structures in yields up