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ChemInform Abstract: The First Organobismuth Rings: (RBi)3 and (RBi)4, R: (Me3Si)2CH.

✍ Scribed by Hans Joachim Breunig; Roland Roesler; Enno Lork

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
30
Category
Article
ISSN
0931-7597

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✦ Synopsis

The First Organobismuth Rings: (RBi) 3 and (RBi) 4 , R: (Me 3 Si) 2 CH.

-New organobismuth rings (II) and (III) are synthesized under careful exclusion of air as described. The equilibrium between them with predominantly red color of the three-membered ring (II) is shifted in favor of the black colored four membered ring (III), when the solution is cooled. -(BREUNIG, HANS

πŸ“œ SIMILAR VOLUMES

Low-Valent Organobismuth Compounds with
Low-Valent Organobismuth Compounds with Intramolecular Coordination: cyclo-R3Bi3, cyclo-R4Bi4, RBi[W(CO)5]2, and R4Bi2 [R = 2-(Me2NCH2)C6H4]
✍ Lucia Balazs; HansΒ J. Breunig; Enno Lork; Cristian Silvestru πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 148 KB

## Abstract The cyclobismuthanes R~__n__~Bi~__n__~, [R = 2‐(Me~2~NCH~2~)C~6~H~4~; __n__ = 3 (1a), 4 (1b)] have been synthesised by reduction of RBiCl~2~ with Na in liquid NH~3~ or by reaction of R~2~BiCl with LiAlH~4~ in Et~2~O. The reaction of 1a/b with W(CO)~5~Β·THF afforded the bismuthinidene com