Abstract
Total syntheses of three different lamellarins have been accomplished using a Ru(II)-catalyzed (3 + 2) annulation strategy to construct the central pyrrole ring. The striking features of this synthesis are the use of PEG-400 as a green solvent for the (3 + 2) annulation reaction and multiple catalytic reactions with excellent overall yield. The present route also enables the synthesis of various lamellarin analogues devoid of a B ring.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Catalysis
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Coumarins / chemical synthesis*
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Coumarins / chemistry
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Ethers
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Heterocyclic Compounds, 4 or More Rings / chemical synthesis*
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Heterocyclic Compounds, 4 or More Rings / chemistry
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Isoquinolines / chemical synthesis*
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Isoquinolines / chemistry
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Molecular Structure
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Polyethylene Glycols / chemistry
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Ruthenium / chemistry
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Solvents / chemistry
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Spectrum Analysis / methods
Substances
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Coumarins
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Ethers
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Heterocyclic Compounds, 4 or More Rings
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Isoquinolines
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Solvents
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lamellarin D
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lamellarin H
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Polyethylene Glycols
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Ruthenium
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polyethylene glycol 400