3 years ago

Tandem Reductive Hydroformylation of Castor Oil Derived Substrates and Catalyst Recycling by Selective Product Crystallization

Tandem Reductive Hydroformylation of Castor Oil Derived Substrates and Catalyst Recycling by Selective Product Crystallization
Vedat Korkmaz, Thomas Seidensticker, Tom Gaide, Andreas J. Vorholt, Arno Behr, Marc R. L. Furst
An orthogonal tandem catalytic system consisting of rhodium and ruthenium complexes yielded linear C12 α,ω-bifunctional compounds from commercial, castor oil derived renewable substrates. With aldehyde yields up to 88 % and selectivities to the linear species of up to 95 %, this approach is direct and atom economic and provides easy access to potential polymer precursors for polycondensates. Additionally, a straightforward method for selective product crystallization was developed, which enabled recycling of the tandem catalytic system for two runs with excellent activity and simultaneously provided a high-purity product. Crystal clear: Linear bifunctional polymer precursors are conveniently synthesized from castor oil derived renewable substrates by applying an orthogonal tandem system consisting of two in situ formed catalytic species. Selective product crystallization is developed to ensure both the recovery of the active tandem system and a high-purity monomer.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/cctc.201700965

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