| 摘要 |
Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: -[A]a-[B]b-[C]c- wherein a represents about 1 to about 99 mole % b represents about 0 to about 50 mole % c represents about 1 to about 99 mole % a+b+c is preferably about 100 %; <IMAGE> <IMAGE> C is selected from the group consisting of: <IMAGE> (I) <IMAGE> (II) and, (III) combinations thereof, wherein D is OH, halide, OR4, NH2, NHR3, OM', or OM''; E is the residue of the reaction of at least one Lewis Acid with the D substituent of monomer unit B.
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