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  • Merrifield Resin-C6H4CH2N3P(MeNCH2CH2)3N: an efficient reusable catalyst for room-temperature 1,4-addition reactions and a more convenient synthesis of its precursor P(MeNCH2CH2)3N.

Merrifield Resin-C6H4CH2N3P(MeNCH2CH2)3N: an efficient reusable catalyst for room-temperature 1,4-addition reactions and a more convenient synthesis of its precursor P(MeNCH2CH2)3N.

The Journal of organic chemistry (2007-03-21)
Chinta Reddy Venkat Reddy, John G Verkade
초록

1,4-additions to a variety of Michael acceptors with a wide variety of donors were efficiently catalyzed at room temperature by the title reusable Merrifield resin-supported catalyst. Advantages of this catalyst include a simple workup (filtration of the reaction mixture) and good to excellent product yields. We also report a substantially simplified synthesis of the commercially available strong nonionic base 1, a precursor to the title polymer-bound catalyst.

MATERIALS
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Sigma-Aldrich
Tris(2-aminoethyl)amine, 96%