Herein, a donor/acceptor-free carbene insertionreaction of an S–S bond through a radical process is presented. This catalyst-free reaction was thermally induced and provided the dithioketal products in moderate to high yields. A mechanism involving radical intermediates was proposed according to the computationalstudy, and these intermediates were verified experimentally and intercepted for the first
A convenient method for the preparation of functionalized<i>N</i>-acylsulfenamides from primary amides
作者:Mateusz Musiejuk、Dariusz Witt
DOI:10.1080/10426507.2015.1065258
日期:2016.2.1
developed a convenient method for the synthesis of functionalized N-acylsulfenamides under mild conditions and in moderate to good yields. The designed method is based on the reaction of (5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl)-disulfanyl derivatives with nitrogen nucleophiles generated from primary amides or imides and sodium hydride. The developed method allows for the preparation of N-acylsulfenamides
good yields. The designed method is based on the reaction of bis(5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl)disulfane with thiols in the presence of 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ). The developed method allows the preparation of unsymmetrical disulfanes bearing additional hydroxy, carboxy, or amino functionalities.
Efficient Synthesis of Functionalized Unsymmetrical Dialkyl Trisulfanes
作者:Dariusz Witt、Slawomir Lach
DOI:10.1055/s-0033-1338966
日期:——
We have developed a convenient method for the synthesis of functionalized unsymmetrical dialkyl trisulfanes under mild conditions in very good yields. The designed method is based on the reaction of (5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl)-disulfanyl derivatives with alkyl disulfanyl anions generated in situ from S-acetyl disulfanyl derivatives and sodium methoxide. The developed method
We have developed a convenient method for the synthesis of unsymmetricaltrisulfides under mild conditions in very good yields. The designedmethod is based on the straightforward preparation of 1-[(5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl)trisulfanyl]dodecanefrom readily available 5,5-dimethyl-2-sulfanyl-2-thioxo-1,3,2-dioxaphosphorinane,sulfur dichloride (SCl 2 ) and dodecane-1-thiol. The