Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Special issue | Vol 37, No. 1, 1994, pp.213-218
Published online, 1st January, 1970
DOI: 10.3987/COM-93-S30
Some New Porphodimethene Chemistry: Synthesis of meso-Formylporphyrins

José A. S. Cavaleiro, M. Graça, P. M. Neves, Craig J. Medforth, and Kevin M. Smith*

*Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616-5295, U.S.A.


Treatment of dipyrromethane-1,9-dicarboxylic acids with triethyl orthoformate and trifluoroacetic acid gives the expected symmetrically substituted porphyrin, along with small amounts of meso-formyl and meso-diformyl-porphyrins. The 5,15 regioselectivity of the formyl groups in the disuhstituted product and NOE experiments suggest that serendipitous formylation takes place at the intermediate porphodimethene stage.