Reactions at the B-B bond of bis(trisyl)oxadiborirane: Ring extensions

Authors
Biermann, K Paetzold, P
Citation
K. Biermann et P. Paetzold, Reactions at the B-B bond of bis(trisyl)oxadiborirane: Ring extensions, Z ANORG A C, 627(10), 2001, pp. 2313-2315
Citations number
4
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
ISSN journal
00442313 → ACNP
Volume
627
Issue
10
Year of publication
2001
Pages
2313 - 2315
Database
ISI
SICI code
0044-2313(200110)627:10<2313:RATBBO>2.0.ZU;2-3
Abstract
The B-B bond of bis(trisyl)oxadiborirane OB2R2 (R = C(SiMe3)(3)) is opened by amides R'CO(NHR ") to give the dioxaazadiboracyclohexanes [-BR-O-BR-NR " -CHR'-O-] (R'/R " = H/H, H/Me, H/Et, Me/H: 5 a-d). The amide MeCO(NHMe) yi elds 5 e (R'/R " = Me/Me), when an excess of the amide is applied for 24 h, but yields an isomeric 1 : 1 adduct (6 e), when a stoichiometric amount of the amide is applied for 15 h; upon refluxing this isomer in hexane, it is transformed into 5 e.