Synthesis of substituted porphyrins
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D.O. Cheng; Eugene LeGoff
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Article
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1977
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Elsevier Science
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French
โ 257 KB
We have found that octasubstituted porphyrins having no substituents in the meso positions can be prepared in high yields by acid catalyzed condensation of formaldehyde with a variety of 3,4-disubstituted pyrroles. This improved procedure circumvents the need to prepare aldehyde, aminomethyl, or hyd