CHED 585 |
Benziporphyrins 1 have emerged as valuable ligands for organometallic chemistry. In this project, we have developed an efficient route to these porphyrin analogue systems. 1,3-Benzenedicarboxylic acids 2 were converted on to the corresponding diacyl chlorides, and then reacted with benzene or chlorobenzene under Friedel-Crafts conditions to generate a series of diketones. Subsequent reduction with sodium borohydride gave excellent yields of dicarbinols 3. Further reaction with 3 equivalents of pyrrole and 2 equivalents of an aromatic aldehyde in the presence of BF3·Et2O, followed by oxidation with DDQ, gave the tetraaryl substituted benziporphyrins 1. |
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Undergraduate Research Poster Session: Organic Chemistry
11:00 AM-1:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |