Back to Search
Start Over
An MCM-41-immobilized dichloro(pyridine-2-carboxylato)gold(III) complex: an efficient and recyclable catalyst for the annulation of anthranils and ynamides.
- Source :
-
Dalton Transactions: An International Journal of Inorganic Chemistry . 1/21/2023, Vol. 52 Issue 3, p806-817. 12p. - Publication Year :
- 2023
-
Abstract
- A new mesoporous MCM-41-immobilized dichloro(pyridine-2-carboxylato)gold(III) complex [MCM-41-PicAuCl2] was synthesized via an addition reaction of a dichloro(3-hydroxypyridine-2-carboxylato)gold(III) complex to triethoxy(3-isocyanatopropyl)silane, followed by immobilization on MCM-41 and was characterized by different physico-chemical techniques. In the presence of 5 mol% of MCM-41-PicAuCl2, the annulation reaction between anthranils and ynamides proceeded smoothly under mild conditions to afford diverse 6- or 5-formylindoles with high atom economy and good to excellent yields. This new heterogenized gold(III) complex can be easily recovered through a simple filtration process and recycled more than seven times without any apparent loss of its catalytic efficiency. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANNULATION
*YNAMIDES
*ADDITION reactions
*GOLD
*WASTE recycling
CATALYSTS recycling
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 52
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 161327091
- Full Text :
- https://doi.org/10.1039/d2dt03733e