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[3+2] Cycloaddition Reaction of Cyclopropyl Ketones with Alkynes Catalyzed by Nickel/Dimethylaluminum Chloride
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2011-10-17 , DOI: 10.1002/anie.201106174 Takashi Tamaki , Masato Ohashi , Sensuke Ogoshi
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2011-10-17 , DOI: 10.1002/anie.201106174 Takashi Tamaki , Masato Ohashi , Sensuke Ogoshi
Nick and Al join forces: The nickel‐catalyzed [3+2] cycloaddition between the title compounds gives cyclopentene derivatives in the presence of Me2AlCl. The organoaluminum reagent activates the carbonyl group of the cyclopropyl ketone through coordination of the oxygen atom to the aluminum, and stabilizes the reaction intermediate by the coordination of the chloride to nickel. cod=1,5‐cyclooctadiene, THF=tetrahydrofuran.
中文翻译:
镍/氯化二甲基铝催化环丙基酮与炔烃的[3 + 2]环加成反应
镍和铝的结合力:在Me 2 AlCl存在下,标题化合物之间进行镍催化的[3 + 2]环加成反应生成环戊烯衍生物。有机铝试剂通过氧原子与铝的配位而活化环丙基酮的羰基,并通过氯化物与镍的配位而使反应中间体稳定。鳕鱼= 1,5-环辛二烯,四氢呋喃=四氢呋喃。
更新日期:2011-10-17
中文翻译:
镍/氯化二甲基铝催化环丙基酮与炔烃的[3 + 2]环加成反应
镍和铝的结合力:在Me 2 AlCl存在下,标题化合物之间进行镍催化的[3 + 2]环加成反应生成环戊烯衍生物。有机铝试剂通过氧原子与铝的配位而活化环丙基酮的羰基,并通过氯化物与镍的配位而使反应中间体稳定。鳕鱼= 1,5-环辛二烯,四氢呋喃=四氢呋喃。