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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1834435Generated: October 26, 2026

Acetic Acid → 2,3,4,5-Tetramethylpyrrole

https://huagongshe.com/reaction/1834435

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantFormaldehydeHCID 712—
ReactantHydrogen iodideHCID 24841—
Reactant2,3-Dimethyl-1H-pyrroleHCID 39538—
ReactantPhosphinic AcidHCID 4124402—
Product2,3,4,5-TetramethylpyrroleHCID 7048451%

Reaction Steps

As in Example 58, using 2,3-dimethyl-pyrrole (2 g), acetic acid (50 ml), hydriodic acid (50 ml), hypophosphorous acid (5 ml) and paraformaldehyde (1.2 g). Yield 51%, m.p. 105°-107°. Anal. Found: C, 77.81; H, 10.32; N, 11.45.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04070366
Source datasetuspto-grants-1978_01
ORD IDord-0f82ebb6f59d4fde8cd668a440f67c1f
Source noteuspto-grants-1978_01