Allylic disulfide rearrangement and desulfurization method for the preparation of allylic sulfides
申请人:Crich David
公开号:US20070260041A1
公开(公告)日:2007-11-08
A method for the preparation of an allylic sulfide comprises contacting an activated sulfenyl compound of Formula (I) with a thiol of Formula (II) for a period of time sufficient to form an intermediate of Formula (III), and contacting the intermediate of Formula (III) with a thiophilic agent, in a polar solvent, to induce a [2,3]-sigmatropic rearrangement therein and thereby form an allylic sulfide of Formula (IV), with concomitant loss of a sulfur atom to the thiophilic agent, wherein in Formulas (I, II, II, and IV), X is S or SO
2
; Y is an aryl group, a substituted-aryl group, a heteroaryl group , or a substituted heteroaryl group; R
1
, R
2
, R
3
, R
4
, and R
5
are each independently H, a hydrocarbon moiety or a substituted hydrocarbon moiety; and R is an organic moiety.
一种制备烯丙基硫醚的方法,包括将公式(I)的活性亚砜化合物与公式(II)的硫醇接触一段足够时间以形成公式(III)的中间体,然后在极性溶剂中将公式(III)的中间体与亲硫试剂接触,诱导其中的[2,3]-σ迁移重排反应,从而形成公式(IV)的烯丙基硫醚,同时失去一个硫原子给亲硫试剂,其中在公式(I,II,II和IV)中,X为S或SO2;Y为芳基,取代芳基,杂环芳基或取代杂环芳基;R1,R2,R3,R4和R5各自独立地为H,烃基或取代烃基;R为有机基团。