Journal
CATALYSIS LETTERS
Volume 146, Issue 4, Pages 841-850Publisher
SPRINGER
DOI: 10.1007/s10562-016-1702-0
Keywords
Homogeneous catalysis; Epoxidation; Recycling; Octamolybdate; Methyl oleate; Ionic liquids
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Funding
- FEDER (Fundo Europeu de Desenvolvimento Regional) through COMPETE (Programa Operacional Factores de Competitividade)
- FCT (Fundacao para a Ciencia e a Tecnologia)
- project CICECO - Aveiro Institute of Materials (FCT) [POCI-01-0145-FEDER-007679, UID/CTM/50011/2013]
- FCT/MEC
- FEDER
- FCT
- European Union - MCTES [SFRH/BPD/73540/2010, SFRH/BPD/97660/2013]
- European Social Fund through the program POPH of QREN
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The octamolybdate salt (H(3)biim)(4)[beta-Mo8O26] (1) has been prepared in good yield by hydrolysis of the complex [MoO2Cl2(H(2)biim)] (H(2)biim = 2,2'-biimidazole). Compound 1 showed a good performance as a (pre)catalyst for the epoxidation of olefins using either tert-butylhydroperoxide (TBHP) or hydrogen peroxide as oxidant. With the ionic liquid (IL) 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide) as co-solvent and TBHP as oxidant, the catalyst system could be reused several times without loss of activity for the epoxidation of the bio-olefin methyl oleate (Ole). Compound 1 is the first polyoxomolybdate used for the Ole/TBHP reaction in IL medium.
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