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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 19424Generated: October 25, 2026

Pyrrolidine → HCID 68561274, compound

https://huagongshe.com/reaction/19424

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant1-Methyl-1H-indole-3-carbaldehydeHCID 87894—
Reactant2,3-dihydro-1H-indolizinium chlorideHCID 68563060—
SolventIsopropanolHCID 3776—
ProductHCID 68561274HCID 68561274—

Reaction Conditions

Temperature80 °C

Reaction Steps

1.55 g of 2,3-dihydro-1H-indolizinium chloride and 1.59 g of 1-methylindole-3-carboxaldehyde were suspended in 15 ml of isopropanol, in a 50 ml three-necked flask. The reaction mixture was heated at 80° C. and then 820 μl of pyrrolidine were introduced. The reaction mixture was immediately cooled to ambient temperature. The precipitate was filtered off, and washed with 2 times 30 ml of isopropanol before being dried under a strong vacuum in the presence of P2O5, until a constant weight was obtained. 2.59 g of orange powder were recovered. The analyses (NMR) (d6-DMSO) and mass spectrometry ESI+M/Z=261) were in conformity with the expected structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07744658B2
Source datasetuspto-grants-2010_06
ORD IDord-f029dbf5f9824a3084cf243e809d0898
Source noteuspto-grants-2010_06