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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1578410Generated: November 3, 2026

4-Ethyl-4-phenylpiperidine → 1-Acetyl-3-[2-(4-ethyl-4-phenylpiperidino)ethyl]-indoline

https://huagongshe.com/reaction/1578410

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Ethyl-4-phenylpiperidineHCID 100846—
ReactantFumaric AcidHCID 444972—
Reactant1-[3-(2-bromoethyl)-2,3-dihydro-1H-indol-1-yl]ethanoneHCID 21559975—
Product1-Acetyl-3-[2-(4-ethyl-4-phenylpiperidino)ethyl]-indolineHCID 21559965—

Reaction Steps

In the manner described in Example 1, treatment of 1-acetyl-3-(2-bromoethyl)indoline with 4-ethyl-4-phenylpiperidine gives an oil. On reaction with molar equivalent of fumaric acid, a crystalline fumarate results. After recrystallization from acetone-hexane it melts at 173°-178°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03936464
Source datasetuspto-grants-1976_02
ORD IDord-cf48f9e71e6e4215a04fb5a8a8172513
Source noteuspto-grants-1976_02