Cargando…
Role of σ,π-Digold(I) Alkyne Complexes in Reactions of Enynes
[Image: see text] Gold(I) acetylide and σ,π-digold(I) alkyne complexes derived from one prototypical 1,6-enyne and from 7-ethynyl-1,3,5-cycloheptatriene have been prepared and structurally characterized. Their possible role in gold(I)-catalyzed cycloisomerizations has been studied by experiment and...
| Autores principales: | , |
|---|---|
| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
American
Chemical Society
2017
|
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5850095/ https://www.ncbi.nlm.nih.gov/pubmed/29551852 http://dx.doi.org/10.1021/acs.organomet.7b00668 |
| _version_ | 1783306168136892416 |
|---|---|
| author | Ferrer, Sofia Echavarren, Antonio M. |
| author_facet | Ferrer, Sofia Echavarren, Antonio M. |
| author_sort | Ferrer, Sofia |
| collection | PubMed |
| description | [Image: see text] Gold(I) acetylide and σ,π-digold(I) alkyne complexes derived from one prototypical 1,6-enyne and from 7-ethynyl-1,3,5-cycloheptatriene have been prepared and structurally characterized. Their possible role in gold(I)-catalyzed cycloisomerizations has been studied by experiment and by DFT calculations. Gold(I) acetylides are totally unproductive complexes in the absence of Brønsted acids. Similarly, no cyclizations were observed by heating σ,π-digold(I) alkyne digold(I) at least up to 130 °C. Theoretical studies provide a rationale for the much lower reactivity of digold species in reactions of enynes. |
| format | Online Article Text |
| id | pubmed-5850095 |
| institution | National Center for Biotechnology Information |
| language | English |
| publishDate | 2017 |
| publisher | American
Chemical Society |
| record_format | MEDLINE/PubMed |
| spelling | pubmed-58500952018-03-15 Role of σ,π-Digold(I) Alkyne Complexes in Reactions of Enynes Ferrer, Sofia Echavarren, Antonio M. Organometallics [Image: see text] Gold(I) acetylide and σ,π-digold(I) alkyne complexes derived from one prototypical 1,6-enyne and from 7-ethynyl-1,3,5-cycloheptatriene have been prepared and structurally characterized. Their possible role in gold(I)-catalyzed cycloisomerizations has been studied by experiment and by DFT calculations. Gold(I) acetylides are totally unproductive complexes in the absence of Brønsted acids. Similarly, no cyclizations were observed by heating σ,π-digold(I) alkyne digold(I) at least up to 130 °C. Theoretical studies provide a rationale for the much lower reactivity of digold species in reactions of enynes. American Chemical Society 2017-12-19 2018-03-12 /pmc/articles/PMC5850095/ /pubmed/29551852 http://dx.doi.org/10.1021/acs.organomet.7b00668 Text en Copyright © 2017 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
| spellingShingle | Ferrer, Sofia Echavarren, Antonio M. Role of σ,π-Digold(I) Alkyne Complexes in Reactions of Enynes |
| title | Role of σ,π-Digold(I) Alkyne Complexes
in Reactions of Enynes |
| title_full | Role of σ,π-Digold(I) Alkyne Complexes
in Reactions of Enynes |
| title_fullStr | Role of σ,π-Digold(I) Alkyne Complexes
in Reactions of Enynes |
| title_full_unstemmed | Role of σ,π-Digold(I) Alkyne Complexes
in Reactions of Enynes |
| title_short | Role of σ,π-Digold(I) Alkyne Complexes
in Reactions of Enynes |
| title_sort | role of σ,π-digold(i) alkyne complexes
in reactions of enynes |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5850095/ https://www.ncbi.nlm.nih.gov/pubmed/29551852 http://dx.doi.org/10.1021/acs.organomet.7b00668 |
| work_keys_str_mv | AT ferrersofia roleofspdigoldialkynecomplexesinreactionsofenynes AT echavarrenantoniom roleofspdigoldialkynecomplexesinreactionsofenynes |