| Autor: |
Wallbaum J, Jones PG; †Technische Universität Braunschweig, Institut für Anorganische Chemie, Hagenring 30, 38106 Braunschweig, Germany., Werz DB |
| Jazyk: |
angličtina |
| Zdroj: |
The Journal of organic chemistry [J Org Chem] 2015 Apr 03; Vol. 80 (7), pp. 3730-4. Date of Electronic Publication: 2015 Mar 19. |
| DOI: |
10.1021/acs.joc.5b00330 |
| Abstrakt: |
A formal insertion of two aryne moieties into the carbon-oxygen double bond of cyclopropenone has been realized. Spirocyclic xanthene-cyclopropene scaffolds were obtained. Mechanistically, a sequence of a formal [2 + 2]-cycloaddition followed by electrocyclic ring opening and a terminating [4 + 2]-type cycloaddition is postulated. The use of an electron-rich aryne precursor led to ring cleavage of the cyclopropene to afford an unprecedented xanthylium salt. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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