The enantioselective total synthesis of the bioactive marine natural products pinnaic acid and halichlorine is reported in detail. Our total synthesis features the construction of the five-membered ring and C9 and C13 stereogenic centers through a palladium-catalyzed trimethylenemethane [3+2] cyclization; the installation of the nitrogen atom through a regioselective Beckmann rearrangement of a poorly reactive ketone; the stereoselective cyclization of the spiro ring through a four-step, one-pot hydrogenation-cyclization; and efficient connection of the sterically hindered lower chain through a reduced-pressure cross olefin metathesis reaction.
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
Keitz, Benjamin K.
;
Endo, Koji
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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
Endo, Koji
;
Herbert, Myles B.
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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
Herbert, Myles B.
;
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:
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
Keitz, Benjamin K.
;
Endo, Koji
论文数: 0引用数: 0
h-index: 0
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
Endo, Koji
;
Herbert, Myles B.
论文数: 0引用数: 0
h-index: 0
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
Herbert, Myles B.
;
Grubbs, Robert H.
论文数: 0引用数: 0
h-index: 0
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