Herein, we report the enantioselective phosphine-catalyzed beta,gamma-annulation of electron-poor allenes with bifunctional malonates. The reaction exploits a 2C phosphonium synthon that when accessed using (R)-SITCP gives 23 cyclopentanes with high stereoselectivity (most >95:5 er and >9:1 dr) and yield. In addition to the (3+2) annulation, a one-pot three-component variant to give the same cyclopentanes and a (3+2) annulation/Dieckmann cyclization cascade, along with mechanistic studies, are reported.
机构:
Zhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R ChinaZhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R China
Gan, Zhenjie
Gong, Yanchuan
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Zhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R ChinaZhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R China
Gong, Yanchuan
Chu, Yunpeng
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Zhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R ChinaZhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R China
Chu, Yunpeng
Li, Er-Qing
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Zhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R ChinaZhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R China
Li, Er-Qing
Huang, You
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Nankai Univ, Coll Chem, State Key Lab & Inst Elementoorgan Chem, Tianjin 300071, Peoples R ChinaZhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R China
Huang, You
Duan, Zheng
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Zhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R ChinaZhengzhou Univ, Coll Chem & Mol Engn, Int Phosphorus Lab, Int Joint Res Lab Funct Organophosphorus Mat Hena, Zhengzhou 450001, Henan, Peoples R China
机构:
East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R ChinaEast China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China
Chen, Peng
Zhang, Junliang
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East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R ChinaEast China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China
机构:
Jilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R China
Kim Il Sung Univ, Dept Chem, Pyongyang, North KoreaJilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R China
Jang Hochol
Liu Wei
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Jilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R ChinaJilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R China
Liu Wei
Zhang Sean Xiao'an
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Jilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R ChinaJilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R China
Zhang Sean Xiao'an
Liao Weiwei
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Jilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R ChinaJilin Univ, Dept Organ Chem, Coll Chem, Changchun 130012, Peoples R China