312525-41-0Relevant academic research and scientific papers
Temperature-controlled synthesis of N-acyl anthranilamides and quinazoline-4ones via Pd-catalysed cascade consisting of isocyanide insertion
Khan, Irfan,Singh, Jaybir,Khan, Imran,Dutt, Sunil,Khan, Shahnawaz,Tyagi, Vikas
, p. 279 - 291 (2019/08/12)
A one step synthesis of functionlized N-acyl anthranilamide via Pd-catalyzed carboxamidation of o-halo substituted N-phenylamide consisting of isocyanide insertion followed by oxidation of the imine intermediate has been achived successfully. Furthermore,
Ir(III)-catalyzed mild C-H amidation of arenes and alkenes: An efficient usage of acyl azides as the nitrogen source
Ryu, Jaeyune,Kwak, Jaesung,Shin, Kwangmin,Lee, Donggun,Chang, Sukbok
, p. 12861 - 12868 (2013/09/23)
Reported herein is the development of the Ir(III)-catalyzed direct C-H amidation of arenes and alkenes using acyl azides as the nitrogen source. This procedure utilizes an in situ generated cationic half-sandwich iridium complex as a catalyst. The reaction takes place under very mild conditions, and a broad range of sp2 C-H bonds of chelate group-containing arenes and olefins are smoothly amidated with acyl azides without the intervention of the Curtius rearrangement. Significantly, a wide range of reactants of aryl-, aliphatic-, and olefinic acyl azides were all efficiently amidated with high functional group tolerance. Using the developed approach, Z-enamides were readily accessed with a complete control of regio- and stereoselectivity. The developed direct amidation proceeds in the absence of external oxidants and releases molecular nitrogen as a single byproduct, thus offering an environmentally benign process with wide potential applications in organic synthesis and medicinal chemistry.
