Organocatalytic Asymmetric Michael/Hemiketalization/Retro-aldol Reaction of α‑Nitroketones with Unsaturated Pyrazolones: Synthesis of 3‑Acyloxy Pyrazoles
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https://figshare.com/articles/dataset/Organocatalytic_Asymmetric_Michael_Hemiketalization_Retro-aldol_Reaction_of_Nitroketones_with_Unsaturated_Pyrazolones_Synthesis_of_3_Acyloxy_Pyrazoles/4587106
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资源简介：
An organocatalytic
asymmetric cascade Michael/hemiketalization/retro-aldol
reaction between unsaturated pyrazolones and α-nitroketones
is described. A bifunctional thiourea catalyst was found to be efficient
for this reaction. With 10 mol % of catalyst, high yields as well
as excellent enantioselectivities are attained for a variety of 3-acyloxy
pyrazoles under mild reaction conditions.
创建时间：
2017-01-25
