POLYDENTATE S<sub>N</sub>X<sub>M</sub>(X = S,O,N) LIGANDS BY SELECTIVE REDUCTION OF ORGANOSULFUR HETEROCYCLES WITH TRIBUTYLTIN HYDRIDE
作者:Clive P. Alexis、Juan M. Uribe、Jeffrey D. Beller、Gayane Godjoian、Carlos G. Gutierrez
DOI:10.1080/10426509608043468
日期:1996.12
S.O.N) can be efficiently prepared by selective desulfurization of bis(1,3-dithiolanes) and bis(1,3-dithianes); bis(1,3-oxathiolanes); and bis(thiazolidines) with two equivalents of tri-n-butyltin hydride. This is a very versatile procedure as many dialdehydes and diketones (or their synthetic equivalents) are available for elaboration into bis(thioheterocycles) by reaction with 1,2-ethane- and 1,3-propanedithiols
摘要 S2X2 型(其中 X = SON)的无环四齿有机硫配体可以通过双(1,3-二硫杂环戊烷)和双(1,3-二噻烷)的选择性脱硫来有效制备;双(1,3-氧杂硫杂环戊烷);和双(噻唑烷)与两当量的三正丁基氢化锡。这是一个非常通用的方法,因为许多二醛和二酮(或其合成等价物)可通过与 1,2-乙烷和 1,3-丙二硫醇、巯基乙醇或巯基乙胺及其不同结构的反应制备成双(硫杂环)特征可以合并到 S2X2 配体中。该程序的最终结果是二硫醇的受控形式单烷基化形成化合物 1 (X = S);巯基乙醇或巯基乙胺的亲核性较低的杂原子(O 或 N)烷基化形成 1 (X = O,N)。