- Metall-Bor-Verbindungen, 13. Zur Synthese und Reaktivitaet einiger (Trimethylstannyl)borane
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The preparation of some amino(trimethylstannyl)boranes and their chemical properties are described.With Me3SnLi (Me = CH3) as a reagent only the synthesis of Me3SnB(NR2)2 (1a, b), Me3SnBCl(NR2) (2a, b), and (Me3Sn)2BNR2 (3b) was achieved.The stannylboranes Me3SnB(NR2)2 show astonishing thermal stability.Their Sn - B bonds are broken by hydrogen, the halogens, and chalcogens as well as by alcohols.HCl cleaves the B - N bond.
- Noeth, Heinrich,Schwerthoeffer, Ruediger
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p. 3056 - 3062
(2007/10/02)
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- Oxidation of Diborane(4) Molecules by Chloramines
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The boron-boron bonds in the diborane(4) molecules (Me2N)2B-B(NMe2)2 (1), (Me2N)ClB-BCl(NMe2) (5) and Cl2B-BCl2 (8) as in B4Cl4 are cleaved by the chloramines Me2NCl (2), MeNCl2 and EtNCl2 (9).As oxydation products BCl3 or the corresponding aminoborane and diborylamines can be isolated.The interaction of 8 and 2 leads to the formation of Me2NH*BCl3 as additional product. - Elementary chlorine does not only cleave the B-B but also the B-N bond in 1, giving Me2NCl as one of the reaction products. - The properties of the N-ethylbis(dichloroboryl)amine (11) are discussed.
- Haubold, Wolfgang,Zurmuehl, Konrad
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p. 2333 - 2341
(2007/10/02)
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