Enhancing Ligand‐Free Fe‐Catalyzed Aminocarbonylation of Alkynes by ZrF
<sub>4</sub>
作者:Zijun Huang、Yanan Dong、Yudong Li、Mohamed Makha、Yuehui Li
DOI:10.1002/cctc.201900995
日期:2019.11.7
Zirconium fluoride was utilized to promote efficiently iron‐catalyzed aminocarbonylation between alkynes and amines without the use of extra ligands. In particular, this new system is applicable to a wide range of amine and alkyne substrates affording α,β‐unsaturated amides in good to excellent yields. Preliminary mechanistic studies reveal the activation model involving interactions of ZF4 with both
Deoxyfluorinated amidation and esterification of carboxylic acid by pyridinesulfonyl fluoride
作者:Anootha Neeliveettil、Soumyadip Dey、Vishnu Nomula、Swati Thakur、Debabrata Giri、Abhishek Santra、Abhijit Sau
DOI:10.1039/d4cc00877d
日期:——
Amide bond synthesis is one of the most used reactions in medicinal chemistry. We report an amide bond formation reaction through deoxyfluorinated carboxylic acids under mild conditions using 2-pyridinesulfonyl fluoride. The reaction procedure has been used in a one-pot synthesis of amides and esters via in situ generation of acyl fluoride. This one-pot synthetic method provides easy access to amides