A greener olefination process to produce alkenoic acids from levulinic acid
Juliana Bahu, Maria Ingrid Schiavon, Anderson De Jesus Bonon, Rubens Maciel Filho
ARTIGO
Inglês
Levulinic acid (LA) is a bifunctional compound with high reactivity that can be produced by acid hydrolysis of biomass. Its ketone group can be functionalized to an olefinic bond via Wittig reaction. However, this reactional system usually involves multiple steps and uses highly toxic raw materials....
Ver mais
Levulinic acid (LA) is a bifunctional compound with high reactivity that can be produced by acid hydrolysis of biomass. Its ketone group can be functionalized to an olefinic bond via Wittig reaction. However, this reactional system usually involves multiple steps and uses highly toxic raw materials. This study aims to produce alkenoic acids derived from LA via Wittig reaction using a greener process. For this, we evaluated the olefination of LA in the presence of different bases (NaHCO3, Na2CO3, and NaOH) and isopropanol as solvent (reduced toxicity). The products were identified by mass spectrometry, observing positive results for NaHCO3. The fragmentation mechanisms for the alkenoic acid ions (4-methyl-hex-4-enoic acid, m/z 127, and 4-methyl-hept-4-enoic acid, m/z 141) confirmed their production by the proposed process
Ver menos
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2015/20630-4
Fechado
A greener olefination process to produce alkenoic acids from levulinic acid
Juliana Bahu, Maria Ingrid Schiavon, Anderson De Jesus Bonon, Rubens Maciel Filho
A greener olefination process to produce alkenoic acids from levulinic acid
Juliana Bahu, Maria Ingrid Schiavon, Anderson De Jesus Bonon, Rubens Maciel Filho
Fontes
|
Chemical engineering transactions Vol. 74 (2019), p. 115-120 |