p-MeOC6H4/TiCl3: a novel initiator for halogen atom-transfer radical reactions in aqueous media
作者:Lidong Cao、Chaozhong Li
DOI:10.1016/j.tetlet.2008.10.070
日期:2008.12
With the combination of p-methoxybenzene-diazonium tetrafluoroborate with TiCl3 as the initiator, a wide range of halogen atom-transfer radical addition or cyclization reactions could be efficiently implemented in aqueous solution at room temperature.
Investigation of Bis(tributyltin)-Initiated Free Radical Cyclization Reactions of 4-Pentenyl Iodoacetates
作者:Junhua Wang、Chaozhong Li
DOI:10.1021/jo0109568
日期:2002.2.1
free radical cyclization to generate gamma-iodoheptanolactones which easily underwent intramolecular nucleophilicsubstitution to form bicyclic acylium species (7) as the key intermediate. Subsequent attack by iodide ion furnished gamma-lactones while attack by hydroxide ion gave the tetrahydrofuran derivatives.