Electric Literature of C3H9OP. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Trimethylphosphineoxide, is researched, Molecular C3H9OP, CAS is 676-96-0, about Entrapped NbOx clusters in MFI zeolite for sustainable acid catalysis.
Entrapping the small NbOx clusters into MFI zeolite crystals was directly prepared via a facile hydrothermal method, assisting with the sodium citrate and EDTA-2Na to dissolve and chelate the niobium precursors. The existing states and configurations of Nb species in the zeolites were carefully characterized by a series of techniques including XRD, FTIR, SEM, TEM, UV-Vis, XPS and Raman. These results clearly indicated that the entrapped oligomeric NbOx clusters in MFI zeolite crystals contained Nb-OH, Nb=O and Nb-O-Si bonds. These characters were the origin of both Lewis and Bronsted acid sites for these Nb-MFI samples, which was vividly confirmed by FTIR spectroscopy with pyridine absorption and solid-state NMR spectroscopy with ammonia and TMPO as probing mols. techniques. The as-prepared Nb-MFI zeolites were employed as sustainable Lewis acids in several catalytic reactions. Especially, Nb-MFI zeolites exhibited remarkable catalytic performance in the cross-aldol condensation between furfural and acetone for biomass upgrading, surpassing traditional Lewis acidic zeolites Sn-MFI and Sn-BEA in terms of activity and selectivity, resp. The 2.6%Nb-MFI also showed very good stability during reaction and it could be recycled for six times without loss in activity. Finally, 2.6%Nb-MFI was verified as a general catalyst for the cross-aldol condensation reaction between small-mol. aldehydes and ketones. All these results demonstrate the great potential of Nb-MFI as a robust catalyst for the shape-selective Lewis acid catalysis. The synthesis strategy developed herein could be readily extended to the construction of zeolite entrapped high-valence transition metal clusters for catalytic applications.
Here is just a brief introduction to this compound(676-96-0)Electric Literature of C3H9OP, more information about the compound(Trimethylphosphineoxide) is in the article, you can click the link below.
Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem