Stepwise synthesis of 1,19-dibromo-a,c-biladienes and their conversion into biliverdins, corroles and azaporphyrins
作者:Ravindra K. Pandey、Huanghai Zhou、Kevin Gerzevske、Kevin M. Smith
DOI:10.1039/c39920000183
日期:——
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.
通过不对称取代的1,19-二溴-a,c-胆二烯(例如3c)通过所谓的“三芳烃路线”进行第一步逐步合成,并将其轻松转化为biliverdins(比林-1,19-二酮),例如4c,描述;这种方法也适用于制备对称的biliverdins 4a以及corrols 5和azaporphyrins 6。