Cinchona Alkaloid Squaramide Catalyzed Enantioselective Hydrazination/Cyclization Cascade Reaction of α‑Isocyanoacetates and Azodicarboxylates: Synthesis of Optically Active 1,2,4-Triazolines
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下载链接：
https://figshare.com/articles/dataset/Cinchona_Alkaloid_Squaramide_Catalyzed_Enantioselective_Hydrazination_Cyclization_Cascade_Reaction_of_Isocyanoacetates_and_Azodicarboxylates_Synthesis_of_Optically_Active_1_2_4_Triazolines/2374870
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资源简介：
An
efficient enantioselective hydrazination/cyclization cascade
reaction of α-substituted isocyanoacetates to azodicarboxylates
catalyzed by Cinchona alkaloid derived
squaramide catalysts has been investigated, affording the optically
active 1,2,4-triazolines in excellent yields (up to 99%) and good
to excellent enantioselectivities (up to 97% ee) under mild conditions.
创建时间：
2016-02-18
