An NH4I-promoted and H2O-controlled intermolecular difunctionalization of alkenes for the synthesis of bis-methylsulfane and beta-hydroxysulfides is presented. Mechanistic investigation revealed the reaction proceeds via methylthiyl radical addition to C=C of alkenes to give a carbon-centered radical and immediately cyclize to a thiiranium ion, followed by combination with H2O to afford beta-hydroxysulfides in 52-89% yields with chemo- and regioselectivities. In the absence of water, 1,2-disulfenylation takes place to give bis-methylsulfane in moderate to good yields.
.beta.-Substituted organolithium compounds. Reaction with alkyl halides, dimethyl disulfide, and imines
作者:Jose Barluenga、Francisco J. Fananas、Jorge Villamana、Miguel Yus
DOI:10.1021/jo00347a037
日期:1982.4
BARLUENGA, J.;FANANAS, F. J.;VILLAMANA, J.;YUS, M., J. ORG. CHEM., 1982, 47, N 8, 1560-1564
作者:BARLUENGA, J.、FANANAS, F. J.、VILLAMANA, J.、YUS, M.
DOI:——
日期:——
BARLUENGA, J.;FOREZ, J.;YUS, M., J. CHEM. SOC. PERKIN TRANS., 1983, N 12, 3019-3026
作者:BARLUENGA, J.、FOREZ, J.、YUS, M.
DOI:——
日期:——
Barluenga, Jose; Florez, Josefa; Yus, Miguel, Journal of the Chemical Society. Perkin transactions I, 1983, # 12, p. 3019 - 3026