SEARCH Articles Figures Tables Alkynes, metal mediated reagents External reagents magnesium ion-mediated reactions External reagents, 1,3-dipolar cycloaddition magnesium ion-mediated reactions External reagents, 1,3-dipolar cycloaddition miscellaneous mediators Metal mediated, acylation reagents Radical Carbonylations Mediated by Tin, Germanium, and Silicon Reagents Radical Reaction Mediated by Grignard Reagents in the Presence of Transition Metal Catalyst Radical Reactions Mediated by Grignard Reagents