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Reaktion von (2-Alkoxy-vinyl)hetero-methiniminiumsalzen mit C-Nukleophilen - ein Zugang zu funktionalisierten Pyryliumsalzen (1986)

Spitzner, R. ; Schroth, W.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 328 (1986), S. 314-320

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Reaction of (2-Alkoxy-vinyl)hetero-methiniminium Salts with C-Nucleophiles - an Approach to Functionalized Pyrylium SaltsThe O-alkylation products 2 of 2-acyl-1-chloro-enamines 1 (X = Cl) or acylketene-S, N-acetales 1 (X = SCH3) respectively react with cyanoactivated methylene compounds 3 under C,C-bond formation. The reaction products 4 have been converted into functionally substituted pyrylium salts 5 by acidic treatment. Limitations of the synthetic approach are discussed.

Additional Material: 1 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19863280303

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