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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1757666Generated: November 2, 2026

Water → HCID 18990361, compound

https://huagongshe.com/reaction/1757666

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyrroleHCID 8027—
Reactant5-(Hydroxymethyl)-3-nitrobenzene-1,2-diolHCID 18990374—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 18990361HCID 18990361—

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution containing 1.0 g of 3,4-dihydroxy-5-nitrobenzyl alcohol and 5.0 ml of pyrrole in 3.0 ml of dioxane was heated for 5 h at 100° C. Water was added and the solution was extracted with dichloromethane. The solvent was evaporated and the residue was purified in a silicagel column using toluene-acetic acid-dioxane (18:1:1) mixture as an eluent. Yield 0.42 g (33%), m.p. 115°-118° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05446194
Source datasetuspto-grants-1995_08
ORD IDord-8dcb560ad489496d9c0f7aff6ce7758b
Source noteuspto-grants-1995_08