Synthesis of Polyheteroaromatic Compounds via Rhodium-Catalyzed Multiple C–H Bond Activation and Oxidative Annulation
作者:Shiyong Peng、Suna Liu、Sai Zhang、Shengyu Cao、Jiangtao Sun
DOI:10.1021/acs.orglett.5b02510
日期:2015.10.16
Transition-metal-catalyzed multiple C–Hactivation and sequential oxidative annulation allows rapidly assembling of those compounds from readily available starting materials. A rhodium-catalyzed cascade oxidative annulation of β-enamino esters or 4-aminocoumarins with internal alkynes is described to access those compounds, featuring multiple C–H/N–H bond cleavages and sequential C–C/C–N bond formations in one pot
A Novel Synthesis of Tetrasubstituted Pyrroles via Tandem Benzylic Oxidative Cyclization
作者:Issa Yavari、Mohammad Bayat
DOI:10.1055/s-0033-1339757
日期:——
A new method for the synthesis of tetrasubstituted pyrroles from a domino reaction between primary benzylamines and dialkyl acetylenedicarboxylates, in the presence of potassium cyanide without using a metal or oxidant, is described.