Recyclable Pt/Glycerol-Catalytic System for Heterophase Hydrosilylation

06 June 2024, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

This study introduces the development of highly efficient and simple recyclable catalysts for hydrosilylation using polyols as a medium for heterophase catalytic systems. The system consists of a commercially available platinum precatalyst – K2PtCl4, and a surplus green solvent – glycerol (Gly), which can be easily prepared by dissolving K2PtCl4 in Gly at r.t. under air. The method allows for at least 60 cycles with a quantitative yield of the anti-Markovnikov product in air at r.t.; the product can be isolated from the catalytic system by simple decantation. The reaction proceeds at a high rate (from 10 min per cycle) even with small catalyst loadings (0.001-0.1 mol% Pt).

Keywords

Hydrosilylation
heterophase and biphase catalysis
recycling and regeneration
hydrosilanes
alkenes
platinum
glycerol
polyols
organosiloxanes
surplus raw materials
green and sustainable chemistry

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.