Iodine‐Catalyzed Ring Opening of 1,1‐Diacylcyclopropanes for Synthesis of Fully Substituted Pyrazole Derivatives,European Journal of Organic Chemistry

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Iodine‐Catalyzed Ring Opening of 1,1‐Diacylcyclopropanes for Synthesis of Fully Substituted Pyrazole Derivatives
European Journal of Organic Chemistry ( IF 2.5 ) Pub Date : 2020-05-29 , DOI: 10.1002/ejoc.202000496
Xiuqin Yang ₁ , Jin Zhu ₁ , Yishu Bao ₁ , Ziyu Ding ₁ , Fulai Yang ₁ , Qingfa Zhou ₁ , Ming Chen ₁

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Iodine‐catalyzed ring opening of 1,1‐diacylcyclopropanes for synthesis of fully substituted pyrazole derivatives have been reported. This reaction tolerates a broad range of cyclopropyl ketones and sulfonyl hydrazides to afford useful and densely functionalized pyrazole derivatives with a hydroxy functional group.