Ethylboration of Stannyl-Substituted Sulfur Diimides
نویسندگان
چکیده
Bis(sulfurdiimido)tin compounds of the type R2Sn[(NSN)'Bu]2 [R = Me (2a), Et (2b)] re act with triethylborane Et^B by rearrangement and N-ethylation to give the novel aminoborane derivatives R2Sn[N('Bu)SN(Et)BEt2]2 (5a, b), in the same way as "Bu3Sn(NSN)'Bu (1) reacts with Et.̂ B to give "Bu3Sn[N('Bu)SN(Et)BEt2] (4). In contrast, 2c (R = 'Bu) and tris(sulfurdiimido)tin compounds RSn[(NSN)'Bu]3 [R = Me (3a), "Bu (3d)] react with Et3B mainly by Snand S-ethylation, accompanied by extensive decomposition. 'H, "B, 13C, 15N and 119Sn NMR spectroscopy served for the structural assignment in solution.
منابع مشابه
New Spiro-Tin Compounds: Reaction of N,N'-Dialkyl Sulfur Diimides with Cyclic Bis(amino)stannylenes - Unexpected Formation of a N-N Bond
Z. Naturforsch. 50 b, 1811-1817(1995); received March 17, 1995 Sulfur Diimides, Bis(amino)stannylenes, Redox Reactions, Spiro-Tin Compounds, X-Ray N,N'-Dialkyl sulfur diimides (1), R(NSN)R [R = Me (a), Et (b), "Pr (c), "Bu (d)] react with cyclic bis(amino)stannylenes such as l,3-di-ter/-butyl-4,4-dimethyl-1,3,4,2A2-diazasilastannetedine (2) or l,3-di-terr-butyl-4,4,5,5-tetramethyl-l,3,4,5,2A2-d...
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