期刊
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
卷 8, 期 -, 页码 1126-1133出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjoc.8.125
关键词
asymmetric catalysis; Cinchona derivatives; organocatalysis; polymerization; thiol-ene reaction
In this work, we report an unusually concise immobilization of Cinchona organocatalysts using thiol-ene chemistry, in which catalyst immobilization and bead polymerization is combined in a single step. A solution of azo initiator, polyfunctional thiol, polyfunctional alkene and an unmodified Cinchona-derived organocatalyst in a solvent is suspended in water and copolymerized on heating by thiol-ene additions. The resultant spherical and gel-type polymer beads have been evaluated as organocatalysts in catalytic asymmetric transformations.
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