SusChem

From Oleo Chemicals to Polymer: Bis-hydroaminomethylation as a Tool for the Preparation of a Synthetic Polymer from Renewables

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Resource-efficient bis-hydroaminomethylation of the castor oil derived renewables methyl 10-undecenoate and 10-undecene-1-ol with piperazine furnished linear, bifunctional molecules. A structured and sustainable path towards a novel polyester from these monomers was developed. Key to success was the selective crystallization of the linear product directly from the crude reaction mixture in >98 % purity. Additionally, with this methodology, the homogeneous Rh catalyst was retained in the supernatant and was successfully recycled. Finally, polycondensation yielded a novel piperazine-linked polyester.

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