Diverse reactions of S–S function under metal-mediated and metal-free thermolysis conditions
作者:Hai-Bin Zhu、Lei Li、Hai Wang、Xin Lu、Shao-Hua Gou
DOI:10.1016/j.inoche.2009.10.009
日期:2010.1
Parallel comparative studies on reactivities of S-S function in 2-ppds (2-ppds = bis(4-(pyridin-2-yl)pyrimidin-2-yl)disulfane) have been carried out under the same thermolysis conditions. In the presence of FeCl(2), thermolysis reaction of 2-ppds in the MeOH/CH(2)Cl(2) mixture results in a mononuclear compound [FeCl(2)(2-pps)] with newly generated organic ligand 2-pps (2-pps = bis(4-(pyridin-2-yl)pyrimidin-2-yl)sulfane). In the absence of FeCl(2), the result of solvolysis depends upon the conditions. Thus, in pure MeOH, 2-ppds partially converts into a mixture of S-(4-pyridin-2-yl)pyrimidin-2-yl (4-pyridin-2-yl)pyrimidine-2-sulfonothioate (2-ppst) and 2-pps, while in a MeOH/CH(2)Cl(2) mixture, 2-(chloromethylthio)-4-(pyridin-2-yl)pyrimidine (2-ppct) is the main product. (C) 2009 Elsevier B.V. All rights reserved.