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Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

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Catalysis

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Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

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Published on: October 18, 2019

Platinum macrocatalyst for heterogeneous Si-O dehydrocoupling.

Konstantin V Deriabin¹, Ekaterina A Golovenko¹, Nikita S Antonov¹

¹Saint Petersburg State University, 7/9 Universitetskaya Emb., St. Petersburg, 199034, Russian Federation. r.islamova@spbu.ru.

Dalton Transactions (Cambridge, England : 2003)

|April 26, 2023

Summary

A novel platinum polymer catalyst (Pt-PDMS) was developed for efficient heterogeneous catalysis. This reusable catalyst effectively promotes silicon-oxygen dehydrocoupling reactions, offering easy recovery and purification.

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Published on: August 23, 2018

Area of Science:

Materials Science
Catalysis
Polymer Chemistry

Background:

Heterogeneous catalysis is crucial for efficient chemical transformations.
Developing robust and reusable catalysts is a key challenge in sustainable chemistry.
Silicon-oxygen bond formation is important in various industrial applications.

Purpose of the Study:

To synthesize a novel platinum-based polymer catalyst (Pt-PDMS).
To investigate the efficacy of Pt-PDMS as a heterogeneous macrocatalyst for Si-O dehydrocoupling.
To demonstrate the recoverability and reusability of the Pt-PDMS catalyst.

Main Methods:

Synthesis of Pt-PDMS via copper-catalyzed azide-alkyne cycloaddition (CuAAC).
Immobilization of a platinum catalytic complex within a polysiloxane chain.
Testing the catalytic activity of insoluble Pt-PDMS in Si-O dehydrocoupling reactions.

Main Results:

Successfully synthesized an insoluble platinum polymer catalyst (Pt-PDMS).
Demonstrated Pt-PDMS as an effective heterogeneous macrocatalyst for Si-O dehydrocoupling.
Showcased the ease of recovery, purification, and reuse of the Pt-PDMS catalyst.

Conclusions:

Pt-PDMS is a promising heterogeneous macrocatalyst for Si-O dehydrocoupling.
The catalyst's stability and reusability contribute to sustainable catalytic processes.
The immobilization strategy offers a versatile approach for developing advanced polymer catalysts.