Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2233895Generated: October 30, 2026

HCID 68580149, compound → Methyl 5-cyano-1H-pyrrole-2-carboxylate

https://huagongshe.com/reaction/2233895

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 68580149HCID 68580149—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductMethyl 5-cyano-1H-pyrrole-2-carboxylateHCID 12730474—

Reaction Conditions

Temperature70 °C

Reaction Steps

A 20% solution of TiCl3 (25 ml, 32 mmol) in water was added to a solution of methyl 5-cyano-1-hydroxy-1H-pyrrole-2-carboxylate (Intermediate 128, 2.55 g, 15 mmol) in MeOH. The reaction was heated to an external temperature of 70° C. for 3 hours. The reaction mixture was concentrated to remove MeOH and the residue was partitioned with EtOAc and water. The organic portion was dried with MgSO4 and concentrated to an orange oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07709503B2
Source datasetuspto-grants-2010_05
ORD IDord-1c0b0f87e7834a4985c918d9047022d9
Source noteuspto-grants-2010_05