Palladium-catalyzed direct ortho-acylation through an oxidative coupling of 2-arylbenzothiazoles with benzylic alcohols
摘要:
An efficient protocol was developed for Pd-catalyzed direct C H bond acylation by cross-dehydrogenative-coupling of arylbenzothiazoles and benzylic alcohols using tert-butyl hydroperoxide (TBHP) as the oxidant. The acylation reactions exhibit good reactivities and excellent regioselectivity. (C) 2013 Elsevier Ltd. All rights reserved.
An efficient palladium-catalysed protocol for direct C–H bond acylation by cross coupling of 2-arylbenzo[d]thiazoles and aldehydes using tert-butyl hydroperoxide as the oxidant is reported. The process provides a useful method for the synthesis of aromatic ketones directly from aldehydes. In addition, the reaction can tolerate various functional groups in good yield with high regioselectivity.