Carbene Complexes with Quinone Bisketal Functions

Karl Heinz Dötz, Michael Popall, Gerhard Müller, Klaus Ackermann

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


The vinylogous‐stabilized carbene complexes 2 (M  Cr, W) are formed by successive reaction of the naphthoquinone bisketal 1 with tBuLi, M(CO)6, and a trace of acid. In the case of the simpler 1,4‐benzoquinone derivative, it is possible to prepare the carbene‐chromium complex 3, which, as exprected, can undergo annelation with alkynes to form the B/C rings of anthracyclinones. (Figure Presented.)

Original languageEnglish
Pages (from-to)911-913
Number of pages3
JournalAngewandte Chemie International Edition in English
Issue number10
StatePublished - Oct 1986
Externally publishedYes


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