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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 583544Generated: October 30, 2026

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

https://huagongshe.com/reaction/583544

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 numberUS05929232
Source datasetuspto-grants-1999_07
ORD IDord-34ed41f873a14a96b0114a99eb7fffd0
Source noteuspto-grants-1999_07