Supplementary Information Enhancement of (Stereo)Selectivity in Dynamic Kinetic Resolution Using Core-Shell Nanozeolite@enzyme as Bi-functional Catalyst
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چکیده
Experimental process The one-pot DKR of racemic 1-PE was carried out in a glass reactor with a magnetic stirring under microwave irradiation at a desired temperature. Typically, racemic 1-PE (0.10-0.4 mmol) and acyl donor (0.20-0.8 mmol) were firstly added into n-hexane (4.0 mL). And then, 20 mg of the core-shell bi-functional catalysts (Hβ-PDDA@CALB)MSs were added into the above-mentioned reaction mixture. The reaction mixture was irradiated by microwave under magnetic stirring at 50-60 o C for a desired time. For mixed catalyst system, 0.2 mmol racemic 1-PE and 0.4 mmol acyl donor were firstly added into n-hexane (4.0 mL). And then, 20 mg of Hβ-ZMSs and 10 mg of Novozym®435 were added into the above-mentioned reaction mixture. The reaction mixture was irradiated by microwave under magnetic stirring at 50 o C for a desired time. The DKR processes of 1-(4-bromophenyl)-ethanol and 1-(p-tolyl) ethanol catalyzed by (Hβ-PDDA@CALB)MSs and mixed catalysts using VA as acyl donor are the same as those of 1-PE at 50 o C.
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تاریخ انتشار 2014