38802-82-3Relevant academic research and scientific papers
A novel route for the preparation of dimeric tetraorganodistannoxanes
Beckmann, Jens,Dakternieks, Dainis,Kuan, Fong Sheen,Tiekink, Edward R.T
, p. 73 - 83 (2007/10/03)
The reaction of polymeric diorganotin oxides, (R2SnO)n (R = Me, Et, n-Bu, n-Oct, c-Hex, i -Pr, Ph), with saturated aqueous NH4X (X = F, Cl, Br, I, OAc) in refluxing 1,4-dioxane afforded in high yields dimeric tetraorganodistannoxanes, [R2(X)SnOSn(X)R2]2, and in a few cases diorganotin dihalides or diacetates, R2SnX2. The reported method appears suitable for the synthesis of fluorinated tetraorganodistannoxanes. Identification of [R2(OH)SnOSn(X)R2]2 (R=n-Bu; X = Cl, Br) and [R2(OH)SnOSn(X)R2] [R2(X)SnOSn(X)R2] suggest a serial substitution mechanism starting from [R2(OH)SnOSn(OH)R2]2. X-ray crystal structure determinations are reported for [Me2(AcO)SnOSn(OAc)Me2]2 (29a), [i-Pr2(Br)SnOSn(Br)i-Pr2]2 (20a), [c-Hex2 (F)SnOSn(F)c-Hex2]2 (5a) and [c-Hex2(F)SnOSn(Cl)c-Hex2]2 (36), respectively. These show the presence of a central (R2Sn)2O2 core that is connected, via the oxygen atoms, to R2Sn entities. Acetate (29a) or halides (5a, 20a, 36) complete the coordination about the tin centres.
A NOVEL SYNTHETIC ROUTE TO DIORGANOTIN DICHLORIDES AND DIBROMIDES
Chandrasekaran, R. K.,Venkataraman, S.,Koola, Johnson D.
, p. C43 - C44 (2007/10/02)
Diorganotin dichlorides and dibromides can be prepared by a simple and convenient one-step process involving the reaction of Grignard reagent with (Acac)2SnX2 (Acac H = pentane-2,4-dione; X = Cl or Br).The yields of lower diorganotin dihalides are excellent while those of higher diorganotin dihalides are moderate.
