The title reaction in the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium(0) affords alkylative coupling products in good to excellent yields in 1,2-dichloroethane at room temperature. This coupling reaction under C(sp2)–O cleavage proceeds stereospecifically. The reaction does not affect a coexisting vinyl sulfide group. This feature enables 1,2- and 1,3-carbonyl transposition
The reactions of thiols and diphenyldisulfide with terminally substituted methylenecyclopropanes
作者:Bo Xu、Yu Chen、Min Shi
DOI:10.1016/s0040-4039(02)00384-2
日期:2002.4
In the reactions of thiols with terminally substituted methylenecyclopropanes, we found that the Markovnikov adducts were produced exclusively along with cyclopropyl ring-opened products via a radical reaction mechanism. The substituent effects and the reaction with diphenyldisulfide were also examined.
作者:Alan R. Katritzky、Amir S. Afridi、Wojciech Kuzmierkiewicz
DOI:10.1002/hlca.19910740830
日期:1991.12.11
tert-Alkyl sulfides, with an α-(1H-benzotriazol-1-yl) group 6 and 13, are readily prepared from N-[(aryl-thio)methyl]-1H-benzotriazoles 3 and N-(11), respectively, by reaction with BuLi and then with the appropriate electrophile. The tert-alkyl sulfides 6 and 13 are smoothly converted by BF3. OEt2 into vinyl sulfides 5, 7 or 12, respectively, in satisfactory yields.
One electron transfer reaction of phenyl vinyl sulfides with dioxygen. The fate of the intermediate vinyl sulfide radical cations.
作者:Luisa Benati、Pier Carlo Montevecchi、Daniele Nanni、Piero Spagnolo
DOI:10.1016/s0040-4039(00)73645-8
日期:1993.5
Mild reaction of pheyl vinyl sulfides with dioxygen can lead to the eventual formation of rearranged vinyl sulfides and/or carbonyl-containing sulfide products, which are believed to result from decomposition of initially-formed vinyl sulfideradical cations. Supporting evidence is provided by the comparable findings obtained from the one electron oxidation of one vinyl sulfide by cerium (IV) ammonium