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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1371517Generated: November 2, 2026

Indole → 1H-Indole, 7-(1-piperazinyl)-

https://huagongshe.com/reaction/1371517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIndoleHCID 798—
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant7-BromoindoleHCID 2757020—
SolventDichloromethaneHCID 6344—
Product1H-Indole, 7-(1-piperazinyl)-HCID 306950254%

Reaction Steps

The Boc protected indole (200 mg, 1.5 mmol) prepared from 7-bromoindole and N-Boc piperazine as described in Step 1 of Preparation 54A is dissolved in DCM (1 mL). TFA (1 mL) is added and the mixture is stirred at r.t. for about an hour. The mixture is then concentrated to oil, which is taken up in methanol and freebased via SCX purification to afford about 164 mg (54%) of the final compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07157463B2
Source datasetuspto-grants-2007_01
ORD IDord-b3442d9115a648a3bce533b88e405f98
Source noteuspto-grants-2007_01