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1 article(s) from Gers, Charlotte F

One-pot four-component synthesis of pyrimidyl and pyrazolyl substituted azulenes by glyoxylation–decarbonylative alkynylation–cyclocondensation sequences

Charlotte F. Gers,
Julia Rosellen,
Eugen Merkul and
Thomas J. J. Müller

Beilstein J. Org. Chem. 2011, 7, 1173–1181, doi:10.3762/bjoc.7.136

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Scheme 1: Selected resonance structures of azulene (1a) and structure of the sesquiterpene guaiazulene (1b).

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Scheme 2: Synthesis of ynones by glyoxylation–decarbonylative Sonogashira coupling.

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Scheme 3: Retrosynthetic analysis of N-heterocyclic substituted azulenes by a one-pot four-component approach....

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Scheme 4: Three-component synthesis of azulenyl- and guaiazulenylynones 3 by glyoxylation–decarbonylative Son...

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Scheme 5: Four-component synthesis of pyrimidylazulenes 5 by glyoxylation–decarbonylative Sonogashira couplin...

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Scheme 6: Four-component synthesis of pyrazolylazulenes 7 by glyoxylation–decarbonylative Sonogashira couplin...

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Published 26 Aug 2011

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