Chemoenzymatic Dynamic Kinetic Resolution of Primary Amines Catalyzed by CAL-B at 38–40 °C
摘要:
The (R)-selective chemoenzymatic dynamic kinetic resolution of primary amines was performed at 38-40 degrees C in MTBE, in good to high yields and with high enantiomeric excesses. These reactions associating CAL-B to octanethiol as radical racemizing agent were carried out in the presence of methyl beta-methoxy propanoate as acyl donor, under photochemical irradiation at 350 nm in glassware.
Fluorine-containing dielectric media and capacitors employing such media
申请人:Pennwalt Corporation
公开号:US04899249A1
公开(公告)日:1990-02-06
A dielectric medium composition comprising a fluorine-containing amide or a fluorine-containing sulfonamide and capacitors or other electric devices incorporating said composition, are disclosed herein.