Dehydrogenative C(sp<sup>3</sup>)–H bond functionalization of tetrahydroisoquinolines mediated by organic oxidants under mild conditions
作者:Zdravko Džambaski、Bojan P. Bondžić
DOI:10.1039/c9ob01090d
日期:——
The organocatalyzed Mannich reaction of unsubstituted and N-aryl-substituted tetrahydroisoquinolines (THIQs) and the Strecker reaction of several N-aryl-substituted THIQs through dehydrogenative C(sp3)-H bond functionalization (cross-dehydrogenative coupling) promoted by organic single electron oxidants DDQ and IBX are presented. The C-H oxidation/Mannich reaction of less reactive N-aryl substituted
Visible light promoted photoredox C(sp<sup>3</sup>)–H bond functionalization of tetrahydroisoquinolines in flow
作者:Ana Filipović、Zdravko Džambaski、Dana Vasiljević-Radović、Bojan P. Bondžić
DOI:10.1039/d0ob02582h
日期:——
A merger of organocatalysis and visible light photoredoxcatalysis performed in flow allowed access to a wide range of functionalized N-aryl-substituted tetrahydroisoquinolines (THIQs) in a formal C–H oxidation/Mannichreaction. Strecker type functionalization and copper-catalyzed alkynylation of several N-aryl-substituted THIQs were also successfully performed in flow, giving valuable products with
The combination of vanadium- and organocatalysis allows for the direct oxidative coupling of cyclic tertiary amines with non-activated ketones without the need for preformed leaving groups.