Heteroarylation of anthraquinone-triflate by suzuki cross-coupling
摘要:
The reactivity of the 4-pyridylboronate 5a for PdCl2(dppf)-catalysed cross-coupling reaction with an anthraquinone triflate is presented, and compared with its 2-thienyl- and phenylboronic analogues. Best results have been obtained on a small scale with anhydrous K3PO4 using an O-2-scavenger or under rigorously anaerobic conditions. (C) 1997 Published by Elsevier Science Ltd.
Synthesis of anthraquinone derivatives by palladium-catalyzed coupling of triflates with stannanes.
作者:Nuria Tamayo、Antonio M. Echavarren、M. Carmen Paredes、Francisco Fariña、Pedro Noheda
DOI:10.1016/s0040-4039(00)97839-0
日期:1990.1
The palladium-catalyzed coupling of hydroxyanthraquinone triflates with stannanes provides an efficient entry into substituted anthraquinones under neutral conditions.