Sponge-like ionic liquids: a new platform for green biocatalytic chemical processes
To build a green chemical industry it is necessary to develop integrated processes of selective transformation and separation capable of directly providing pure products, including the reuse of all the elements of the reaction system, e.g. catalysts, solvents, etc . In recent years, the unsurpassed...
Saved in:
| Published in | Green chemistry : an international journal and green chemistry resource : GC Vol. 17; no. 7; pp. 376 - 3717 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
01.01.2015
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | To build a green chemical industry it is necessary to develop integrated processes of selective transformation and separation capable of directly providing pure products, including the reuse of all the elements of the reaction system,
e.g.
catalysts, solvents,
etc
. In recent years, the unsurpassed selectivity of enzymes for chemical reactions, combined with the excellent solvent properties of ionic liquids (ILs), has provided an excellent setting for carrying out sustainable chemical transformations. However, implementation of this to industrial chemical processes needs the development of straightforward, cheap and/or sustainable approaches for pure product extraction, including the reuse of ILs. Hydrophobic ILs based on cations with long alkyl side-chains,
e.g.
octadecyldecyltrimethylammonium bis(trifluoromethylsulfonyl)imide, ([C
18
tma][NTf
2
]), are temperature switchable ionic liquid/solid phases that behave as sponge-like systems (Sponge-Like Ionic Liquids, SLILs). Based on this newly found property, SLILs have been used to develop straightforward and clean approaches for producing nearly pure synthetic liquid compounds of high added value (
e.g.
flavour esters, biodiesel,
etc
.) in two steps: a biocatalytic step that occurs as monophasic liquid systems, followed by a product separation step carried out by cooling/centrifugation/filtration of the solid reaction system. SLILs therefore might be considered a new green platform for easy preparation of pure products.
Hydrophobic ILs based on cations with long alkyl side-chains are switchable ionic liquid/solid phases with temperature that behave as sponge-like systems (Sponge-Like Ionic Liquids, SLILs), being applied for producing pure liquid compounds (
e.g.
biodiesel,
etc
). |
|---|---|
| Bibliography: | Dr Michel Vaultier studied chemistry at the University of Rennes (France). He obtained his PhD in 1977 and then moved to the University of Wisconsin (USA), where he was appointed as a post-doctoral fellow in the group of Professor Barry M. Trost (1978-1979). When back to France he started his own research at the University of Rennes as a CNRS researcher. He then moved to the University of Bordeaux in 2010, and joined the Institute for Molecular Sciences (ISM, UMR CNRS 5255). He is actually Emeritus Director of Research at CNRS. His current research interests are focused on boron chemistry, task specific ionic liquids, biocatalysis in ionic liquids, organic nanoparticles and molecular photonics. Cientifico Titular Pedro Lozano was born in Ceutí, Spain in 1961. He received his PhD in Sciences (Chemistry) at the University of Murcia in 1988. Between 1990 and 1991, he spent two years at the Centre de Bioingénierie Gilbert Durand, Toulouse (France) as a post-doctoral fellow. In 1993, he returned to the University of Murcia (Spain) as Lecturer in Biochemistry and Molecular Biology, being finally promoted to Full Professor in 2004. Since 2014, he is the Dean of the Faculty of Chemistry at the University of Murcia. His research activity has always been related to enzyme technology in ionic liquids and supercritical fluids. E. García-Verdugo was born in 1972 in Talavera de Reina, Spain. He obtained his chemistry degree at the University of Valencia (1995) and his PhD in chemistry at the University Jaume I (Spain) in 2001. Then, he worked as a researcher at Nottingham University (UK) under the supervision of M. Poliakoff (until 2004). He returned to Spain and worked as a Ramon y Cajal fellow at University Jaume I until 2009, and then he moved to the ICP-CSIC (Madrid) as etc to develop more efficient and greener organic transformations. Gregorio Sánchez was born in La Unión, Spain in 1951. He graduated in Chemistry at the University of Murcia in 1975, and he obtained his PhD degree in Chemistry at the same University in 1984. In 1987, he was Lecturer in Inorganic Chemistry at the Faculty of Chemistry of the University of Murcia, being finally promoted to Full Professor in 2004. Between 2006 and 2014, he was Dean of the Faculty. His research interests include the preparation and reactivity of hydroxo-complexes of Ni, Pd and Pt with hybrids, as well as (bio)catalytic complexes, and their use in developing green chemical processes. Santiago V. Luis studied chemistry at the University of Zaragoza and completed his PhD at the University of Valencia (Spain) in 1983. After a postdoctoral stay in 1985 (University of Pittsburgh, USA, Prof. J. Rebek), he obtained a permanent position at the University of Valencia (1987) and then a full professorship at the University Jaume I of Castellón (1995). His areas involve biomimetic chemistry and sustainable and green chemistry perspective, with special emphasis on catalysis and flow chemistry. Since the last decade he has been coordinating the Spanish MSc and PhD Interuniversity Programs in sustainable chemistry. M. Isabel Burguete graduated in chemistry at the University of Zaragoza in Spain and after a stay at the University of Pittsburgh (USA) under the supervision of Dr J. Rebek, she completed her PhD at the University of Valencia in 1989 under the direction of Dr F. Gaviña working on regulated crown ethers and convergent diacids. In 1989 she took an academic appointment at the University Jaume I in Castellón (Spain) where she is currently Professor of organic chemistry. Her main field of research is the development of new tools, in particular homogeneous and supported catalysis approaches, in green and sustainable chemistry 2009-2010). Since 2010, he has been Lecturer in Organic Chemistry at the University Jaume I. Currently, he is working on the integration of different so-called enabling techniques (catalysis, polymeric materials, continuous flow processes, microreactors, bio-catalysis, neoteric solvents Juana M. Bernal was born in Fortuna, Spain in 1984. She received her degree in Chemical Engineering in 2009, masters in Fine and Molecular Chemistry in 2010, and PhD in Chemical Engineering in 2014, at the University of Murcia (Spain). Since 2014, she has been Assistant Professor in Biochemistry and Molecular Biology at the University of Murcia. Her research activity has always been related to enzymatic processes in ionic liquids and supercritical fluids. |
| ISSN: | 1463-9262 1463-9270 |
| DOI: | 10.1039/c5gc00894h |