Organocatalyzed [3 + 2] Annulation of Cyclopropenones and β‑Ketoesters: An Approach to Substituted Butenolides with a Quaternary Center
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https://figshare.com/articles/dataset/Organocatalyzed_3_2_Annulation_of_Cyclopropenones_and_Ketoesters_An_Approach_to_Substituted_Butenolides_with_a_Quaternary_Center/4595548
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资源简介：
An unprecedented organocatalyzed
[3 + 2] annulation of cyclopropenones
and β-ketoesters has been developed. This reaction provides
a direct approach to highly substituted butenolides with a quaternary
center in moderate to good yields. The preliminary mechanism study
verified that the enol intermediate is crucial to the reaction outcome
and the intermolecular esterification and intramolecular Michael addition
process were involved.
创建时间：
2017-01-30
