Online-Ressource | |
Verfasst von: | Mulks, Florian [VerfasserIn] |
Antoni, Patrick W. [VerfasserIn] | |
Rominger, Frank [VerfasserIn] | |
Hashmi, A. Stephen K. [VerfasserIn] | |
Titel: | Cyclopropenylgold(I) complexes as aurated carbenoids or quasi-carbenes |
Verf.angabe: | Florian F. Mulks, Patrick W. Antoni, Frank Rominger, A. Stephen K. Hashmi |
Umfang: | 12 S. |
Fussnoten: | Published online: March 9, 2018 ; Gesehen am 28.06.2018 |
Titel Quelle: | Enthalten in: Advanced synthesis & catalysis |
Jahr Quelle: | 2018 |
Band/Heft Quelle: | 360(2018), 9, S. 1810-1821 |
ISSN Quelle: | 1615-4169 |
Abstract: | Highly strained hydrocarbons have always been a research target of high interest. Due to their untypical electronic structure, they show interesting reactivity patterns and can easily be activated by π-coordination to or insertion reactions with metal complexes. Herein we report the synthesis of a range of 3,3-disubstituted cyclopropenylgold(I) complexes. The synthesis of such compounds with a metal, which usually easily activate cyclopropenes is a double-edged sword. We found σ-bound vinylic gold to generally have a strong stabilizing effect in terms of ring strain. The complexes show a strong distortion, preactivating the cyclopropenyls towards the ring-opening mode which thermally generates 1-aurated vinylcarbenes which is reflected by a much faster conversion (Ea of 10 kcal/mol instead of 40 kcal/mol, the reaction proceeds at temperatures as low as −20 °C instead of 200 °C reported in the literature). In 3-phenyl-cyclopropenyl complexes, these could be trapped intramolecularly to give indenylgold(I) complexes. The properties of these highly strained complexes were investigated, utilizing a range of analytical and experimental procedures and Kohn-Sham density functional theoretic methods. |
DOI: | doi:10.1002/adsc.201701526 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt. Verlag: http://dx.doi.org/10.1002/adsc.201701526 |
Verlag: https://onlinelibrary.wiley.com/doi/abs/10.1002/adsc.201701526 | |
DOI: https://doi.org/10.1002/adsc.201701526 | |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1576937003 |
Verknüpfungen: | → Zeitschrift |