Nickel-catalyzed [3+1+1] cycloaddition reactions of alkenyl Fischer carbene complexes with methylenecyclopropanes |
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| Authors: | Kamikawa Ken Shimizu Yasunori Takemoto Shin Matsuzaka Hiroyuki |
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| Institution: | Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan. kamikawa@c.s.osakafu-u.ac.jp |
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| Abstract: | Methylenecyclopentanones were synthesized by the nickel-catalyzed 3+1+1] cycloaddition reactions of alkenyl Fischer carbene complexes with methylenecyclopropanes. The methylenecyclopropane was transformed into the C(2)-symmetric bis-cyclopentapyridazine derivative by reacting with p-toluenesulfonyl hydrazine. |
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