A new chiral N-heterocyclic carbene ligand has been prepared and examined in nickel-catalyzed, asymmetric reductive couplings of aldehydes and alkynes. In comparison with related structures that have been largely examined in asymmetric ring-closing metathesis reactions, the new ligand provides superior yields and enantioselectivities in the nickel-catalyzed reductive couplings. The scope of asymmetric couplings in intermolecular variants as well as a 14-membered macrocyclization is illustrated.
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CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Berlin, Jacob M.
Goldberg, Steven D.
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CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Goldberg, Steven D.
Grubbs, Robert H.
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CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
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Univ Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USAUniv Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USA
Chen, YK
Walsh, PJ
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Univ Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USAUniv Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USA
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CALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Funk, TW
Berlin, JM
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CALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Berlin, JM
Grubbs, RH
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CALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
机构:
CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Berlin, Jacob M.
Goldberg, Steven D.
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机构:
CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Goldberg, Steven D.
Grubbs, Robert H.
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机构:
CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Labs Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
机构:
Univ Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USAUniv Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USA
Chen, YK
Walsh, PJ
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h-index: 0
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Univ Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USAUniv Penn, P Roy & Diana T Vagelos Labs, Dept Chem, Philadelphia, PA 19104 USA
机构:
CALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Funk, TW
Berlin, JM
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h-index: 0
机构:
CALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA
Berlin, JM
Grubbs, RH
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h-index: 0
机构:
CALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USACALTECH, Arnold & Mabel Beckman Lab Chem Synth, Div Chem & Chem Engn, Pasadena, CA 91125 USA