Process for the preparation of L-IDITOL and recycling of the catalyst

DE602022017328T2Active Publication Date: 2025-07-09BASF SE
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Patent Information

Application Number
DE602022017328
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-05-19
Filing Date
2022-05-10
Publication Date
2025-07-09
Estimated Expiration
2042-05-10

AI Technical Summary

Technical Problem

Existing methods for producing L-Iditol from L-Sorbose suffer from low selectivity and inefficiency, with challenges in catalyst recycling and reactivation, leading to high costs and environmental impact due to waste generation.

Method used

A process involving hydrogenation of L-Sorbose using a hydrophobic stereoselective ruthenium catalyst complex with chiral ligands, followed by separation and reactivation with a chloride source, allows for the efficient production of L-Iditol and recycling of the catalyst.

Benefits of technology

This process achieves high selectivity and yield of L-Iditol, reduces waste, and enables cost-effective industrial production by maintaining catalyst activity and selectivity through recycling.

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