by the formation of instable σ-sulfurane intermediates. Homolytic cleavage of these intermediates gave radical pairs, then the coupling products. Heterocyclic clevage gave newsulfonium salts which rearranged via sulfoniumylides.
THE TRANSYLIDATION REACTION OF A SELENONIUM YLIDE WITH SULFIDES
作者:Seizo Tamagaki、Katsuyuki Tamura、Seizi Kozuka
DOI:10.1246/cl.1977.725
日期:1977.7.5
Several dialkylsulfonium ylides were obtained almost quantitatively by the transylidation reaction of dibenzylselenonium cyano(methoxycarbonyl)methylide with alkyl sulfides in the presence of CS2.
Reactions of organomercury fulminates with acetylene derivatives
作者:Francesco De Sarlo、Antonio Guarna、Andrea Goti、Alberto Brandi
DOI:10.1016/0022-328x(84)80289-2
日期:1984.7
Organomercury fulminates react with acetylenederivatives to give unstable 3-(organomercurio)isoxazoles, which isomerize to 2-cyanoenolates. These are hydrolyzed with hydrochloric acid to the corresponding enols and are cleaved by water at the double bond. With monosubstitutedacetylenes, substitution at the free position by the organomercury residue is predominant.