An efficient metal-free and catalyst-free C–S/C–O bond-formation strategy: synthesis of pyrazole-conjugated thioamides and amides
作者:Shubham Sharma、Dharmender Singh、Sunit Kumar、Vaishali、Rahul Jamra、Naveen Banyal、Deepika、Chandi C Malakar、Virender Singh
DOI:10.3762/bjoc.19.22
日期:——
described for the synthesis of pyrazole-tethered thioamide and amide conjugates. The thioamides were generated by employing a three-componentreaction of diverse pyrazole C-3/4/5 carbaldehydes, secondary amines, and elemental sulfur in a single synthetic operation. The advantages of this developed protocol refer to the broad substrate scope, metal-free and easy to perform reaction conditions. Moreover