Dioxygen-Mediated Decarbonylative CH Alkylation of Heteroaromatic Bases with Aldehydes
作者:Subhasis Paul、Joyram Guin
DOI:10.1002/chem.201503809
日期:2015.12.1
An operationally simple and economical method for the direct alkylation of heteroaromaticbases employing readily available aldehydes as alkyl radical precursors and molecular oxygen as a reagent is presented. This simple transformation demonstrates a broad substrate scope with respect to aldehydes and nitrogen heterocycles, enabling the introduction of several medicinally important yet challenging
Radical C−H Acylation of Nitrogen Heterocycles Induced by an Aerobic Oxidation of Aldehydes
作者:Subhasis Paul、Manotosh Bhakat、Joyram Guin
DOI:10.1002/asia.201900857
日期:2019.9.16
ketones is described herein. The reaction involves cross-dehydrogenative coupling between aldehydes and heteroaromatic bases with molecularoxygen (O2 ). The key aspect of the method is the generation of reactive acyl radical via homolytic activation of aldehyde C-H bond using O2 as the sole oxidant. The reaction has a good substrate scope with respect to aldehydes and functionalized nitrogen heterocycles