Stepwise synthesis of 1,19-dibromo-a,c-biladienes and their conversion into biliverdins, corroles and azaporphyrins
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 2,p. 183-185
- https://doi.org/10.1039/c39920000183
Abstract
The first stepwise syntheses of unsymmetrically substituted 1,19-dibromo-a,c-biladienes, e.g.3c, via the so-called ‘tripyrrene route’, and their facile conversion into biliverdins (bilin-1,19-diones), e.g.4c, are described; this methodology is also adapted for the preparation of symmetrical biliverdins 4a, as well as corroles 5 and azaporphyrins 6.Keywords
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