L 3 C 3 P 3 : Tricarbontriphosphide Tricyclic Radicals and Cations Stabilized by Cyclic (alkyl)(amino)carbenes
| Autor: | Guy Bertrand, Yuanfeng Hou, Zhongshu Li, Yaqi Li, Hansjörg Grützmacher, Cheng-Yong Su, Alexander Hinz, Jeffrey Harmer |
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| Přispěvatelé: | Department of Chemistry, UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), University of California [San Diego] (UC San Diego), University of California-University of California-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Radical
Conjugated system [CHIM.INOR]Chemical Sciences/Inorganic chemistry 010402 general chemistry Photochemistry 01 natural sciences Medicinal chemistry Catalysis law.invention chemistry.chemical_compound law [CHIM.COOR]Chemical Sciences/Coordination chemistry Electron paramagnetic resonance Alkyl ComputingMilieux_MISCELLANEOUS chemistry.chemical_classification 010405 organic chemistry Chemistry [CHIM.ORGA]Chemical Sciences/Organic chemistry Cationic polymerization General Chemistry [CHIM.CATA]Chemical Sciences/Catalysis 3. Good health 0104 chemical sciences Carbene Tricyclic |
| Zdroj: | Angewandte Chemie International Edition Angewandte Chemie International Edition, Wiley-VCH Verlag, 2018, 57 (1), pp.198-202. ⟨10.1002/anie.201710099⟩ |
| ISSN: | 1433-7851 1521-3773 |
| Popis: | Alkynes usually oligomerize to give rings with a conjugated π-electron system. In contrast, phosphaalkynes, R-C≡P, frequently give compounds with polycyclic structures, which are thermodynamically more stable than the corresponding π-conjugated isomers. The syntheses of the first CP tricyclic compounds are reported with either radical or cationic ground states stabilized by cyclic (alkyl)(amino)carbenes (CAACs). These compounds may be considered as examples of tricarbontriphosphide coordinated by carbenes and are likely formed via trimerization of the corresponding mono-radicals CAAC-CP. The mechanism for the formation of these tricarbontriphosphide radicals has been rationalized by a combination of experiments and DFT calculations. |
| Databáze: | OpenAIRE |
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