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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 841022Generated: October 30, 2026

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

https://huagongshe.com/reaction/841022

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 numberUS06369223B2
Source datasetuspto-grants-2002_04
ORD IDord-2a251b96661a46659d936071d3773a10
Source noteuspto-grants-2002_04