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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 840046Generated: October 25, 2026

3H-Indole, 2,3,3-trimethyl- → n-(5-Carboxypentyl)-2,3,3-trimethylindolinium bromide

https://huagongshe.com/reaction/840046

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3H-Indole, 2,3,3-trimethyl-HCID 15427—
Reactant6-Bromohexanoic acidHCID 20210—
Productn-(5-Carboxypentyl)-2,3,3-trimethylindolinium bromideHCID 18764706—

Reaction Steps

N-(5-carboxypentyl)-2,3,3-trimethylindolinium bromide was prepared by the process set forth in Example IA with 2,3,3-trimethylindolenine and 6-bromohexanoic acid to produce 2.43 grams (71.2 percent yield) of yellow crystals. 1H and 13C NMR spectra indicated the following:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06365312B1
Source datasetuspto-grants-2002_04
ORD IDord-390a5630d1a84acc809fd0c60ccb3b0e
Source noteuspto-grants-2002_04