Nitrene equivalent mediated metal-free ring expansions of alkylidenecyclopropanes and an alkylidenecyclobutane |
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| Authors: | Liang Yong Jiao Lei Wang Yuanyuan Chen Yuanyuan Ma Linge Xu Jiaxi Zhang Shiwei Yu Zhi-Xiang |
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| Institution: | Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Beijing National Laboratory for Molecular Sciences, College of Chemistry, Peking University, Beijing 100871, China. |
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| Abstract: | The ring expansion of small-ring compounds provides a powerful method for the construction of various cyclic compounds. Herein, nitrene equivalent mediated metal-free ring expansions of alkylidenecyclopropanes (ACPs) and an alkylidenecyclobutane (ACB) were described. In this synthesis, a series of aryl-substituted cyclobutylidene and cyclopentylidene hydrazine derivatives were obtained under mild conditions in moderate to good yields. reaction: see text] |
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