Can Urochrome be Cracked into Individual Pyrroles?

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SUMMARY

The discussion centers on the feasibility of cracking Urochrome, a tetrapyrrole, into individual pyrroles by breaking the methylene bridges connecting them. Jeff expresses skepticism regarding the simplicity of this process, suggesting that any potential cracking pathway may be as complex as pyrrole synthesis itself. The abundance of urochrome makes it a relevant subject for pyrrole synthesis exploration.

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JeffEvarts
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Urochrome/urobilin (structure below) is a tetrapyrrole, with the pyrroles connected with methylene (ish) bridges. I'm wondering if there's a good way to "crack" this molecule (like a hydrocarbon) along the bridges to yield the individual pyrroles. I ask because pyrrole synthesis is involved, and urochrome is abundant.

-Jeff
726px-I-Urobilin-neutral.svg.png
 

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I'm skeptical that any cracking pathway of these heme breakdown products is going to be less involved than pyrrole synthesis.
 
And I didn't say it WOULD be. I'm just posing the question.
 

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