A complex formed in situ from Er(OTf)(3) and a simple commercially available norephedrine ligand promotes an unprecedented [4 + 2] cycloaddition of alpha,beta-unsaturated acid chlorides with a broad range of aromatic and heteroaromatic aldehydes by a cooperative bifunctional Lewis acid-Lewis base catalytic mode of action providing valuable delta-lactone building blocks with excellent enantioselectivity.
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Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R ChinaLanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Duan, Shengfu
Zhang, Xing
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Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R ChinaLanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Zhang, Xing
Li, Xiangxin
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Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R ChinaLanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Li, Xiangxin
Chi, Zhiyong
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Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R ChinaLanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Chi, Zhiyong
Xie, Zhixiang
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Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China
Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R ChinaLanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China