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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1195724Generated: November 2, 2026

2-Methylbenzenesulfonic acid → HCID 15007047, compound

https://huagongshe.com/reaction/1195724

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methylbenzenesulfonic acidHCID 6925—
ReactantCycloheptanoneHCID 10400—
ReactantPyrrolidineHCID 31268—
ReactantMethacrylonitrileHCID 31368—
SolventAcetic AcidHCID 176—
SolventEthanolHCID 702—
SolventTolueneHCID 1140—
ProductHCID 15007047HCID 15007047—

Reaction Steps

Cycloheptanone was converted to an enamine by reaction with pyrrolidine in toluene solvent and in the presence of toluenesulphonic acid. The enamine was alkylated with methacrylonitrile in ethanol solvent and hydrolysed using acetic acid according to the procedure of Stark et al, J. Amer. Chem, Soc., 85, 207 (1963) to give 2-(2-cyanopropyl)cycloheptanone (bp 100° C./0.02 mmHg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05112832
Source datasetuspto-grants-1992_05
ORD IDord-6ced9daf49d94b76bfdb7a53a284b884
Source noteuspto-grants-1992_05