Asymmetric Domino Multicatalysis for the Synthesis of 3‑Substituted Phthalides: Cinchonine/NHC Cooperative System
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https://figshare.com/articles/dataset/Asymmetric_Domino_Multicatalysis_for_the_Synthesis_of_3_Substituted_Phthalides_Cinchonine_NHC_Cooperative_System/2325517
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资源简介:
It
is demonstrated that two organocatalysts, achiral NHC and chiral
bifunctional cinchonine, are mutually compatible and operating concurrently
and effectively to promote the asymmetric domino oxidation/oxa-Michael
addition reaction. This protocol allowed access to both enantiomers
of a product by using two natural, inexpensive pseudoenantiomeric
cinchona alkaloids, cinchonine and cinchonidine, as well as to phthalides
containing a chiral quaternary carbon center in good enantioselectivities.
创建时间:
2016-02-18



