Catalytic <i>O</i>
- to <i>N</i>
-Alkyl Migratory Rearrangement: Transition Metal-Free Direct and Tandem Routes to <i>N</i>
-Alkylated Pyridones and Benzothiazolones
作者:Abhishek Kumar Mishra、Nelson Henrique Morgon、Suparna Sanyal、Aguinaldo Robinson de Souza、Srijit Biswas
DOI:10.1002/adsc.201800664
日期:2018.10.18
The present study reports the synthesis of N‐alkylated pyridones and benzothiazolones via O‐ to N‐alkyl group migration under transition metal‐free TfOH‐catalyzed reaction conditions for the first time, to the best of our knowledge. Primary as well as secondary alkyl groups smoothly migrate under the present reaction conditions. Moreover, a minor modification of the protocol used in this study is found