Intramolecular Alkyne Hydroalkoxylation and Hydroamination Catalyzed by Iridium Hydrides
作者:Xingwei Li、Anthony R. Chianese、Tiffany Vogel、Robert H. Crabtree
DOI:10.1021/ol052186i
日期:2005.11.1
[reaction: see text] Iridium(III) hydrides prove to be air-stable active catalysts for intramolecular hydroalkoxylation and hydroamination of internal alkynes with proximate nucleophiles. The cyclization follows highly selective 6-endo-dig regiochemistry when regioselectivity is an issue.
Tandem indole C–H alkenylation/arylation for tetra-substituted alkene synthesis
作者:Laura Lopez Suarez、Michael F. Greaney
DOI:10.1039/c1cc13094c
日期:——
Alkynyl indoles undergo a novel sequence of Pd-catalysed indole C-H activation/alkyne carbopalladation/arylation, with diaryliodonium salts providing the aryl components. An array of functionalised indole alkenes have been prepared in good to excellent yield, with the reaction being selective for the Z-alkene.