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US 7,396,964 B2Granted
Enantiomerically enriched 2-butanol
AssigneeLANXESS Deutschland GmbH
InventorsBjörn Schlummer, Martin Stürmann
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Abstract
The present invention relates to a process for preparing enantiomerically enriched 2-butanol and to its use.
Claims4
Process for preparing enantiomerically enriched 2-butanol, comprising reducing enantiomerically enriched 1,2-epoxybutane with hydrogen in the presence of palladium compounds and a vicinal diamine wherein the palladium compounds are compounds selected from the group consisting of formula (Ia) and formula (Ib)
- M2[Pd(Hal)4] (Ia),
- Pd(Hal)2 (Ib)
- in which
- M is lithium, sodium, potassium, ammonium or organic ammonium and
- Hal is chloride, bromide or iodide
- wherein the palladium compounds are formed by reacting formula (Ia) and/or formula (Ib) with hydroxide in the presence of a support thereby forming a resulting product wherein the resultingnroduct com rises the palladium compound applied to the support, and
- wherein the resulting product and the vicinal diamine are added directly to the enantiomerically enriched 1,2-epoxybutane.
4 more elements
Dependencies are inferred from the claim text.