Pd(II)-Ni(II) Pyrazolate Framework as Active and Recyclable Catalyst for the Hydroamination of Terminal Alkynes.
Saved in:
| Title: | Pd(II)-Ni(II) Pyrazolate Framework as Active and Recyclable Catalyst for the Hydroamination of Terminal Alkynes. |
|---|---|
| Authors: | Cirujano, Francisco G.1 francisco.garcia@kuleuven.be, López-Maya, Elena2, Navarro, J. A. R.2, De Vos, Dirk E.1 |
| Source: | Topics in Catalysis. Sep2018, Vol. 61 Issue 14, p1414-1423. 10p. 3 Color Photographs, 1 Diagram, 6 Graphs. |
| Subjects: | Pyrazolates, Hydroamination, Alkynes, Nickel, Catalysts, Zeolites |
| Abstract: | Abstract: Well-dispersed [Pd(NH3)4]2+ sites have been introduced in the defective nickel pyrazolate porous framework, known as K@NiBDP. The resulting porous crystalline material shows a superior catalytic behavior for C-N bond formations than [Pd(NH3)4]2+ containing zeolite HY. The palladium exchanged catalyst, Pd@NiBDP, is able to promote both intra- and intermolecular hydroamination of terminal alkynes with excellent activity, reusability and selectivity towards the corresponding indole or imine versus the hydration of the alkyne. The same Pd species introduced in the microporous acid HY zeolite favors the hydration of the terminal alkyne towards the corresponding ketone, instead of the addition of the amine to the triple bond.Graphical Abstract: |
| Copyright of Topics in Catalysis is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Abstract: Well-dispersed [Pd(NH3)4]2+ sites have been introduced in the defective nickel pyrazolate porous framework, known as K@NiBDP. The resulting porous crystalline material shows a superior catalytic behavior for C-N bond formations than [Pd(NH3)4]2+ containing zeolite HY. The palladium exchanged catalyst, Pd@NiBDP, is able to promote both intra- and intermolecular hydroamination of terminal alkynes with excellent activity, reusability and selectivity towards the corresponding indole or imine versus the hydration of the alkyne. The same Pd species introduced in the microporous acid HY zeolite favors the hydration of the terminal alkyne towards the corresponding ketone, instead of the addition of the amine to the triple bond.Graphical Abstract: <graphic></graphic> [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 10225528 |
| DOI: | 10.1007/s11244-018-1039-6 |
