3-(Triphenylphosphonio)indole-2-thiolate
✍ Scribed by Hašek, J. ;Huml, K. ;Schenk, H. ;Goubitz, K. ;de Jong, R. ;Heijdenrijk, D.
- Book ID
- 114506625
- Publisher
- International Union of Crystallography
- Year
- 1990
- Tongue
- English
- Weight
- 396 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0108-2701
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Syntheses with 1,3‐Ambident‐Nucleophilic Phosphorus Ylides, VII. – Heterocyclic Triphenylphosphonium Chlorides, Triphenylphosphonio‐Olates, Acyclic Triphenylphosphonio‐Thiolates and Their Wittig Derivatives Under mild conditions, benzoylmethylenetriphenylphosphorane (1b) reacts readily with oxalyl
The U atom in the crystal structure of the title compound, [U(NO 3 ) 2 O 2 (C 21 H 19 O 2 P)], shows hexagonal-bipyramidal coordination, as the nitrate and carboxylate groups function as chelates. The oxo O atoms occupy the axial sites of this uncommon coordination geometry.
In the title compound, C 26 H 20 BrN 3 O 3 , the central pyrrolidine ring adopts an envelope conformation. In the crystal structure, the molecules exist as centrosymmetric N-HÁ Á ÁO hydrogenbonded dimers. The dimers are linked via C-HÁ Á ÁO hydrogen bonds, forming a chain along the b axis.