Practical Radical Cyclizations with Arylboronic Acids and Trifluoroborates
摘要:
Practical radical cyclizations using organoboronic acids and trifluoroborates take place in water, open to air, and In a scalable fashion employing catalytic silver nitrate and stoichiometric potassium persulfate. Both Pschorr-type cyclizations and tandem radical cyclization/trap cascades are described, Illustrating the utility of these mild conditions for the generation of polycyclic scaffolds.
Intermolecular Radical Carboaminohydroxylation of Olefins with Aryl Diazonium Salts and TEMPO
作者:Markus R. Heinrich、Alexander Wetzel、Marcel Kirschstein
DOI:10.1021/ol701622d
日期:2007.9.1
Highly reactive aryl radicals can selectively be reacted with a broad variety of activated and nonactivated olefinic substrates in the presence of nitroxyl radicals. Direct recombination of the aryl radical and the nitroxide as well as telomerization of the olefin is successfully suppressed by the reaction conditions.
Practical Radical Cyclizations with Arylboronic Acids and Trifluoroborates
作者:Jonathan W. Lockner、Darryl D. Dixon、Rune Risgaard、Phil S. Baran
DOI:10.1021/ol2023505
日期:2011.10.21
Practical radical cyclizations using organoboronic acids and trifluoroborates take place in water, open to air, and In a scalable fashion employing catalytic silver nitrate and stoichiometric potassium persulfate. Both Pschorr-type cyclizations and tandem radical cyclization/trap cascades are described, Illustrating the utility of these mild conditions for the generation of polycyclic scaffolds.