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- Title
Cytosine Palladium Complex Supported on Ordered Mesoporous Silica as Highly Efficient and Reusable Nanocatalyst for One-Pot Oxidative Esterification of Aldehydes.
- Authors
Rajabi, Fatemeh; Chia, Chin Hua; Sillanpää, Mika; Voskressensky, Leonid G.; Luque, Rafael
- Abstract
The synthesis of esters is one of the most fundamental and significant subjects in organic chemistry and chemical industry because they are used in high-value products such as cosmetics, biofuel, pharmaceuticals, surfactants, and food ingredients. In this study, an efficient, economic, sustainable, and green protocol for oxidative esterification reaction has been developed. A one-pot direct transformation of aliphatic, aromatic, and unsaturated aldehydes into esters in the presence of oxygen has been carried out over mesoporous organosilica-supported palladium nanocatalyst (Pd-Cyt@SBA-15) under ambient conditions. Pd-Cyt@SBA-15 efficiently catalyzed selectively large-scale conversion of aldehydes into esters in high yields and large turnover numbers (TON = 98,000). Pd-Cyt@SBA-15 nanocatalyst demonstrated excellent reusability and stability and could be recycled up to ten times without loss of significant reactivity. ICP-AES analysis showed that no leaching of active palladium species occurred during the recycling process of the heterogeneous Pd-Cyt@SBA-15 nanocatalyst.
- Subjects
MESOPOROUS silica; ALDEHYDES; ORGANIC chemistry; ESTERIFICATION; PALLADIUM compounds; CYTOSINE
- Publication
Catalysts (2073-4344), 2021, Vol 11, Issue 12, p1482
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal11121482