Basf Aktiengesellschaft

Basf Aktienegesellschaft

Rainer St&uuml;rmer

Andreas Kramer

Frank Funke

Arthur H&ouml;hn

Shelue Liang

Gudrun Voss

Jens Holz

Wolfgang Siegel

Hagen Jaedicke

Thomas Friedrich

Martin Jochen Klatt

Kai-Uwe Baldenius

Detlef Ruff

Armin B&ouml;rner

Karin Schein

Armin B&ouml;rmer

Production of optically active phospholanes

Immobilized lipase is prepared by adsorbing lipase from a crude lipase solution onto polyolefin particles such as polypropylene particles which are nonpolar. The crude solution may be a cell-free culture broth. Lipase sources include and . Uses of the immobilized lipase include enantioselective conversion of substrates such as enantioselective acylating or hydrolyzing.

Immobilizing lipase by adsorption from a crude solution onto nonpolar polyolefin particles

Racemization of optically active amines

Enzyme-containing polymers are prepared by an anhydrous process of direct reaction of an enzyme in organic solution with crosslinking organic compounds having terminal reactive groups. In a first step, the enzyme is reacted in an organic solvent with a bifunctional monomer such as p-phenylene diisocyanate, 4-methyl-m-phenylene diisocyanate or 4,4&prime;-methylenebisphenyl diisocyanate, and in a second step a bifunctional amine such as N-phenylethylenediamine, 1,6-diaminohexane, N,N&prime;-diethyl-ethylenediamine or 1,4-diaminobutane is added. The enzyme-containing polymers are used as catalysts in chemical reactions such as acylation or enantioselective acylation of alcohols.

Preparing enzyme-containing polymers by reacting an enzyme in organic solution with crosslinking compounds

Process for preparing monoacetylated hydroquinone compounds

Asymmetric hydrogenation of &bgr;-keto esters

Growing community of inventors

Rödersheim-Gronau, Germany

Rainer Stürmer

Growing community of inventors

Rödersheim-Gronau, Germany

Rainer St&uuml;rmer

Rainer Stürmer