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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 3
BKCSDE 30(3)
March 20, 2009 

Applications of Cross-linked Poly(4-vinylpyridine/styrene) Copolymer-supported Ytterbium(III) Triflate in Mannich-type Reaction: Three Component One-pot Synthesis of β-Aminoketones
Sang Hyeup Lee*, Byoung Se Lee*
Polymer-supported catalyst, Poly(4-vinylpyridine/styrene), Ytterbium(III) triflate, Mannich-type reaction
The ytterbium catalyst immobilized on the cross-linked poly(4-vinylpyridine/styrene) copolymer (P/S-Yb) was applied in the Mannich-type, three component one-pot synthesis of β-aminoketones. This catalytic system showed excellent catalytic activity and selectivity which resulted in the exclusive formation of β-aminoketone. The applicability of this immobilized catalyst system was shown by the reusability test and again highlighted by the synthesis of a β-aminoketone library using a broad range of substrates.
551 - 555
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