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Catalytic activation of CO2 via frustrated Lewis pairs for carbonylation of olefins

Grant number: 17/24347-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2018
Effective date (End): July 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Liane Marcia Rossi
Grantee:Tomaz Neves Garcia
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:14/50279-4 - Brasil Research Centre for Gas Innovation, AP.PCPE

Abstract

Global warming is one of the most serious problems humanity is facing, changing fauna and flora over the years and putting at risk the existence of life as we know it. There is an urgent need to reduce the emission of greenhouse gases, because the emission of these types of gases may one day be no longer optional. Aligning environmental concerns with the need for the formation of the valuable C-C bonds from a non-fossil resource, widely available and renewable, the valorization of CO2, as well as its use as a source of carbon in fine chemicals synthesis, receives great relevance today. However, because it is a thermodynamically stable and kinetically inert molecule, employing CO2 as a building block in fine chemical synthesis is very challenging. Among the various types of CO2 utilization reactions, its direct application to olefin carbonylation has attracted great interest. The classical process of hydroformylation, carbonylation of olefins with synthesis gas (CO and H2), which employs Rh and Co catalysts, is considered a leader in the industrial production of aldehydes. The direct use of CO2, possibly with the formation of CO in situ, requires new catalysts or CO2 activators. The present project proposes the catalytic study of hydroformylation reactions of olefins from CO2 by frustrated Lewis pairs, using nanostructured catalysts associated with basic ligands or supports. Taking advantage of the same system and catalysts, the project also intends to study the trifluoromethylation of carbonyls starting with HCF3, which is another greenhouse gas.