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Polycyclische aromatische Alkaloide, I. Synthese von Cleistopholin und Sampangin (1989)

Bracher, Franz

Weinheim : Wiley-Blackwell

Liebigs Annalen 1989 (1989), S. 87-88

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ISSN: 0170-2041

Keywords: Alkaloids, polycyclic aromatic ; Cleistopholine ; Sampangine ; Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Polycyclic Aromatic Alkaloids, I. - Synthesis of Cleistopholine and SampangineCleistopholine (4) is prepared in a one-pot synthesis by Diels-Alder cycloaddition of 1 to 2, followed by thermal elimination of dimethylamine. Reaction of 4 with tripiperidinomethane or dimethylformamide diethyl acetal yields the enamines 5a/5b, which, without further purification, give sampangine (6) on heating with ammonium chloride in glacial acetic acid.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.198919890117

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