Citation: Qing Hua BIAN, Jun LIU, Ming Ming YIN, Min WANG. Synthesis of Novel Bisoxazoline Ligands for the Enantioselective Diels-Alder Reaction[J]. Chinese Chemical Letters, ;2006, 17(8): 1033-1036.
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Four novel bisoxazoline ligands 8a-d were synthesized from (S)-amino alcohols and could be formed effective catalysts (up to 77% ee for endo isomer) with Cu(OTf)2 for enantioselective Diels-Alder addition. The facility of the reaction was dependent on the nature of the substituent R in the bisoxazoline ligand.
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Keywords:
- Asymmetry catalytic,
- bisoxazoline,
- Diels-Alder reaction,
- ligand
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