Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines

Weber L, Domke I, Kahlert J, Stammler H-G (2006)
European Journal of Inorganic Chemistry (17): 3419-3424.

Journal Article | Published | English

No fulltext has been uploaded

Abstract
Oxidation of the 1,3,2-diazaborole tBuN(a)CH=CHNb(tBu)BBr(N-a-B) (1h) with NO+PF6- afforded the diazaborolium salts [tBuN(a)=CH-CH=N-b(tBu)BF2(N-a-B)]X-+(-) (X = Br-, Br-3(-), PF6-) (3h) as the result of different oxidation processes. The same product was obtained when the 1,3,2-diazaborolidine tBuN(a)CH(2)CH(2)N(b)(tBu)BBr(N-a-B) (2h) was subjected to reaction with NO+PF6-. In contrast to this, oxidation of 1h and 2h with NO+BF4- cleanly furnished [tBuN(a)CH-CH=N-b(tBu)BFBr(N-a-B)]+BF4- (6h). Treatment of the 1,3,2-diazaboroles tBuN(a)CH=CHNb(tBu)BR(N-a-B) [R = H (1e), CN (1i), C CH (1j)] with NO+PF6- under comparable conditions led to the borolium salts [tBuN(a)=CH-CH=N-b(tBu)BRF(N-a-B)]+PF6- [R = H (3e), CN (3i), C CH (3j)]. All the borolium salts investigated in this study were reversibly reduced by cyclic voltammetry. The novel products were characterized by elemental analyses and NMR spectra (H-1, B-11, C-13, F-19 (31)p). The X-ray structure analysis of 3h reveals two independent planar cations in the asymmetric unit, accompanied by one bromide and one tribromide ion. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
Publishing Year
ISSN
PUB-ID

Cite this

Weber L, Domke I, Kahlert J, Stammler H-G. Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines. European Journal of Inorganic Chemistry. 2006;(17):3419-3424.
Weber, L., Domke, I., Kahlert, J., & Stammler, H. - G. (2006). Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines. European Journal of Inorganic Chemistry(17), 3419-3424.
Weber, L., Domke, I., Kahlert, J., and Stammler, H. - G. (2006). Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines. European Journal of Inorganic Chemistry, 3419-3424.
Weber, L., et al., 2006. Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines. European Journal of Inorganic Chemistry, (17), p 3419-3424.
L. Weber, et al., “Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines”, European Journal of Inorganic Chemistry, 2006, pp. 3419-3424.
Weber, L., Domke, I., Kahlert, J., Stammler, H.-G.: Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines. European Journal of Inorganic Chemistry. 3419-3424 (2006).
Weber, Lothar, Domke, Imme, Kahlert, Jan, and Stammler, Hans-Georg. “Chemical oxidation of 1,3,2-diazaboroles and 1,3,2-diazaborolidines”. European Journal of Inorganic Chemistry 17 (2006): 3419-3424.
This data publication is cited in the following publications:
This publication cites the following data publications:

Export

0 Marked Publications

Open Data PUB

Web of Science

View record in Web of Science®

Search this title in

Google Scholar