| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1325152 | Journal of Organometallic Chemistry | 2009 | 7 Pages |
The reaction of ditbutyldichlorostannane with 5 equivalents of magnesium leads to 1,1,2,2,3,3,4-hepta-tbutyl-4-(chloromagnesio)-tetrastannacyclobutane 1. A mechanism of this reaction is proposed. 1 is structurally characterized by 1D and 2D 119Sn NMR experiments. New monofunctionalised four membered cyclostannanes could be obtained by derivatisation of 1. X-Ray analysis of 1,1,2,2,3,3,4-hepta-tbutyl-4-methyl-tetrastannacyclobutane 2 and 1,1,2,2,3,3,4-hepta-tbutyl-4-chlorpropyl-tetrastannacyclobutane 5 show bent ring systems with folding angles about 157°.
Graphical abstractReaction of ditbutyldichlorstannane with 5 equivalents of magnesium leads to 1,1,2,2,3,3,4-hepta-tbutyl-4-(chloromagnesio)-tetrastannacyclobutane 1. The derivatisation of 1 with different alkylhalogenides yields monofunctionalysed tetrastannacyclobutanes.Figure optionsDownload full-size imageDownload as PowerPoint slide
