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Decarboxylation of uroporphyrin by heating at atmospheric pressure.


ABSTRACT: Free uroporphyrin is decarboxylated by heating in the air to 150--200 degrees C. Complete decarboxylation occurs after heating to 200 degrees C for 5 min, with a yield of 66--75%. Heptacarboxylic porphyrin can be prepared with a yield of 40% by heating uroporphyrin to 150 degrees C for 60 min, and hexacarboxylic porphyrin with a yield of about 20% by heating to 150 degrees C for 2h.

SUBMITTER: With TK 

PROVIDER: S-EPMC1165437 | biostudies-other | 1975 May

REPOSITORIES: biostudies-other

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