Synthesis of d-mannitol-based crown ethers and their application as catalyst in asymmetric phase transfer reactions.


A few new d-mannitol-based monoaza-15-crown-5 type chiral lariat ethers and 18-crown-6 type macrocycles were synthesized. These crown compounds were used as phase transfer catalysts in asymmetric Michael addititons and in a Darzens condensation under mild conditions to afford the corresponding products in a few cases in good to excellent… (More)
DOI: 10.1002/chir.22800


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