Title

Some new porphodimethene chemistry: Synthesis of meso-formylporphyrins

Document Type

Article

Publication Date

1-1-1994

Abstract

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 disubstituted product and NOE experiments suggest that serendipitous formylation takes place at the intermediate porphodimethene stage. © 1994.

Publication Source (Journal or Book title)

Heterocycles

First Page

213

Last Page

218

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