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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 392542Generated: November 1, 2026

Salicylaldehyde → 5,10,15,20-tetra(2-hydroxyphenyl)porphyrin

https://huagongshe.com/reaction/392542

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSalicylaldehydeHCID 6998—
ReactantPyrroleHCID 8027—
SolventPropionic AcidHCID 1032—
Product5,10,15,20-tetra(2-hydroxyphenyl)porphyrinHCID 135474844—

Reaction Steps

Pyrrole (1.0 equivalents) and salicylaldehyde (1.2 equivalents) are dissolved in propionic acid (1 liter/20 ml pyrrole) and the solution is refluxed for 30 minutes. The reaction mixture is allowed to cool to room temperature and stand for one day. The mixture is filtered and the product is recrystallized to yield 5,10,15,20-tetrakis(2′-hydroxyphenyl) porphyrin.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06800766B2
Source datasetuspto-grants-2004_10
ORD IDord-3db00391a2de4b4b9b796dd894db788e
Source noteuspto-grants-2004_10