Journal ArticleDOI
Hydroborierung von Isonitrilen
A. Meller,H. Batka +1 more
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In this article isonitrilen mit Diboran bzw. Disiamylboran entstehen Derivate des 2,5-Diboradihydropyrazins, die sich thermisch entweder in Diborapiperazinderivate oder in andere Verbindungen umlagern lassen.Abstract:
Durch Umsetzung von Isonitrilen mit Diboran bzw. Disiamylboran entstehen Derivate des 2,5-Diboradihydropyrazins, die sich thermisch entweder in Diborapiperazinderivate oder in andere Verbindungen umlagern lassen. Infolge der hohen Reaktivitat der Isonitrile wirken auch Borazine hydroborierend, wobei symmetrische und unsymmetrische B-Carbiminoborazine entstehen. Mit Tetrakis(dimethylamino)diboran(4) erfolgt Einschiebung der Isonitrilgruppe in die B−B-Bindung, die zu Derivaten des Iminobis(diaminoboryl)-methans fuhrt.read more
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Isolation of 1,2,4,3-Triazaborol-3-yl-metal (Li, Mg, Al, Au, Zn, Sb, Bi) Derivatives and Reactivity toward CO and Isonitriles
TL;DR: 3,4-dihydro-2H-1,2,4,3-triazaborol-3-yl-lithium 3 was synthesized and fully characterized and mechanistic study suggests that the reactions with CO and aryl isonitriles proceed via an insertion of CO and isonitrile carbon into the B-Li bond followed by isomerization to yield transient carbene species.
Journal ArticleDOI
Synthesis of (Boryl)(silyl)iminomethanes by Insertion of Isonitriles into Silicon−Boron Bonds
TL;DR: In this article, the insertion of alkyl and aryl isonitriles into the silicon−boron bond of silylboranes proceeded thermally to provide (boryl)(silyl)iminomethanes in moderate-to-good yields.
Journal ArticleDOI
1,2-Azaboretidine formation in the reactions of (boryl)(silyl)iminomethanes via possible generation of (amino)(boryl)carbene species
TL;DR: Aryl(1,2-azaboretidin-3-yl)-4,5-benzoimidazole was isolated as the corresponding borane complexes as mentioned in this paper, which was formed in the reaction of aryl isocyanides with (organosilyl)bis(diisopropylamino)borane.
Journal ArticleDOI
Activation of boryl-, borylene and metalloborylene complexes by isonitriles
Holger Braunschweig,William C. Ewing,Katharina Ferkinghoff,Alexander Hermann,Thomas Kramer,Rong Shang,Eva Siedler,Christine Werner +7 more
TL;DR: The reactions of isonitriles with a variety of metalloboryl and metAlloborylene species are shown to yield a range of products, none of which display the typical Lewis acid-base reactivity previously observed between such metal complexes and other Lewis bases.