Palladium-Catalyzed Aerobic Oxidative Coupling of Amides with Arylboronic Acids by Cooperative Catalysis
作者:Yue Li、Hongxiang Wu、Zhuo Zeng
DOI:10.1002/ejoc.201900531
日期:2019.7.23
A new conceptual method, the first fluoride and palladium co‐catalyzed conversion of amide to ester through an aerobic oxidative coupling pathway is reported. This work demonstrates the synergistic combination of fluoride and palladium catalysis as a new concept to activate inert amide N–C bonds, which may facilitate the growing utilization of amides as synthons in a variety of transformations.
Reaction of Amide and Sodium Azide for the Synthesis of Acyl Azide, Urea, and Iminophosphorane
作者:Devaneyan Joseph、Sunwoo Lee
DOI:10.1021/acs.orglett.2c02429
日期:2022.8.26
in DMF at 25 °C and produce the symmetrical ureas in THF/H2O at 80 °C via the sequential reaction of acyl substitution and Curtius rearrangement. All acyl azides were also obtained from the secondary amides via sequential reaction of p-toluenesulfonyl chloride and NaN3. In addition, keto-stabilized iminophosphoranes were prepared from a one-pot reaction of amides, NaN3, and phosphines.
酰胺与 NaN 3在 25 °C 下在 DMF 中反应生成酰基叠氮化物,并在 80 °C 下通过酰基取代和 Curtius 重排的顺序反应在 THF/H 2 O 中生成对称脲。所有的酰基叠氮化物也是由仲酰胺通过对甲苯磺酰氯和NaN 3 的顺序反应得到的。此外,由酰胺、NaN 3和膦的一锅法反应制备了酮基稳定的亚氨基正膦。