This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie.
Dianions of Tetraboranes(4): Puckered Aromatic Four-Membered Rings and Their Reactions with Conservation of Aromaticity †
Article first published online: 16 APR 2003
© 2002 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 42, Issue 15, pages 1717–1719, April 17, 2003
How to Cite
Mesbah, W., Präsang, C., Hofmann, M., Geiseler, G., Massa, W. and Berndt, A. (2003), Dianions of Tetraboranes(4): Puckered Aromatic Four-Membered Rings and Their Reactions with Conservation of Aromaticity . Angew. Chem. Int. Ed., 42: 1717–1719. doi: 10.1002/anie.200250700
- Issue published online: 16 APR 2003
- Article first published online: 16 APR 2003
- Manuscript Received: 5 DEC 2002
- density functional calculations
Aromatic with boron: Two-electron heteroaromatic compounds 1 and 2 undergo oxidations and reactions with electrophiles (reducing the number of framework electrons by two and four, respectively) under conservation of aromaticity. In contrast, corresponding reactions of the known dianion 3, a six-electron aromatic four-membered ring, lead to loss of aromaticity (R=SiMe3).