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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1242997Generated: October 30, 2026

Indole → N-(4-methylphenyl)indole

https://huagongshe.com/reaction/1242997

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIndoleHCID 798—
Reactant4-ChlorotolueneHCID 7810—
Reactant1,2-Diaminocyclohexane, trans-HCID 43806—
ReactantPotassium Phosphate, TribasicHCID 62657—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventEthyl acetate hexaneHCID 21226206—
ProductN-(4-methylphenyl)indoleHCID 9794286—

Reaction Steps

Using the general procedure outlined in Example 63, indole (0.117 g, 1.00 mmol) was coupled with 4-chlorotoluene (1 mL, 8.45 mmol) using CuI (9.5 mg, 0.050 mmol, 5.0 mol %), K3PO4 (2.1 mmol) and trans-1,2-cyclohexanediamine (24 μL, 0.20 mmol, 20 mol %) to give the crude product. Column chromatography (2×15 cm, hexane:ethyl acetate 50:1) provided 0.066 g (32% GC yield) of the product as a white solid. This product was pure by 1H NMR when compared to the known spectra.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07115784B2
Source datasetuspto-grants-2006_10
ORD IDord-916c81a7bfa64ba1bbd63c6028981bb7
Source noteuspto-grants-2006_10