Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1606880Generated: October 31, 2026

Methyl iodide → HCID 14326177, compound

https://huagongshe.com/reaction/1606880

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantHCID 19785053HCID 19785053—
ReactantPotassium tert-butoxideHCID 23665647—
Catalyst18-Crown-6HCID 28557—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 14326177HCID 1432617779%

Reaction Steps

A solution of methyl pyrrol-3-yloxoacetate (3.3 g, 22 mol) in THF (70 ml) was added at room temperature to a stirred suspension of potassium tert-butoxide (2.7 g, 24 mmol) and 18-crown-6 (0.1 g, 0.39 mmol) in ether (250 ml). The reaction mixture was stirred for 30 minutes then iodomethane (1.6 ml, 26 mmol) in ether (50 ml) was added dropwise. The reaction mixture was stirred for 16 hours then filtered through hyflo supercell and washed with brine, dried and concentrated to give methyl N-methyl-pyrrol-3-yloxoacetate (2.84 g, 79% yield) as a clear oil, IR (thin film) 1725, 1645 cm-1, 1H nmr: delta 3.64 (3H, s), 3.85 (3H, s), 6.5 (1H, m) 6.7 (1H, m), 7.6 (1H, m) ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04863503
Source datasetuspto-grants-1989_09
ORD IDord-fa62c82e258a49019844f3808fbef996
Source noteuspto-grants-1989_09