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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1110355Generated: November 1, 2026

2-Methylbenzenesulfonic acid → HCID 15007047, compound

https://huagongshe.com/reaction/1110355

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 numberUS04975431
Source datasetuspto-grants-1990_12
ORD IDord-217bf0065e7c4c6b91b5cfda5a6d5409
Source noteuspto-grants-1990_12