Brønsted Base-Modulated Regioselective Pd-Catalyzed Intramolecular Aerobic Oxidative Amination of Alkenes: Formation of Seven-Membered Amides and Evidence for Allylic C−H Activation
作者:Liang Wu、Shuifa Qiu、Guosheng Liu
DOI:10.1021/ol900941t
日期:2009.6.18
A novelpalladium-catalyzed intramolecular aerobic oxidative allylic C−H amination of olefins has been developed. Brønsted base can modulate the regioselectivity, favoring the formation of 7-membered rings. Mechanistic studies using deuterium-labeled substrates as probes support a rate-determining allylic C−H activation/irreversible reductive elimination pathway.
Gem-dimethyl effect in the formation of seven to eleven-membered ring lactones by iodolactonisation
作者:Bruno Simonot、Gérard Rousseau
DOI:10.1016/0040-4039(93)88076-u
日期:1993.7
The influence of a gem-dimethyl group on an iodine-induced cyclisation of ω-alkenoic acids, leading to seven-membered and medium ring lactones was studied.