AI Article Synopsis
- - A one-pot reaction involving di-n-propyl/di-n-butyltin oxide, dialkyl sulfite, and a base occurs under mild conditions to produce specific sulfonato diorganostannates.
- - This transformation follows the sulfur-centered Arbuzov rearrangement mechanism and yields compounds like dianionic tetraalkanesulfonato diorganostannates.
- - X-ray crystallography shows a unique structure of these compounds, indicating how the ligands bind to tin, while NMR studies suggest a complex coordination of the tin atoms in the resulting solutions.
Article Abstract
A one-pot reaction between di-n-propyl/di-n-butyltin oxide, dialkyl sulfite, and triethylamine or tetra-n-alkylammonium iodide proceeds under ambient conditions (110-120 degrees C, 20 h) via sulfur-centered Arbuzov rearrangement to afford the corresponding dianionic tetraalkanesulfonato diorganostannates [R2Sn(OSO2Me)4].2Et3NMe [R = n-Pr (1), n-Bu (2)] as well as [n-Bu(2)Sn(OSO(2)R(1))(4)].(2)R(2)(4)N [R(1) = Me, Et, n-Pr; R(2) = Et (3, 5, and 7), n-Bu (4, 6, and 8)]. X-ray crystal structures of 2 and 3 reveal a monomeric motif of the dianion, with methanesulfonate groups acting as unidentate ligands. The (119)Sn NMR spectral studies suggest the existence of pentacoordinated tin species in solution.
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| http://dx.doi.org/10.1021/ic702099t | DOI Listing |
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