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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1597737Generated: October 30, 2026

Carbazole → 9-(Butan-2-yl)-9H-carbazole

https://huagongshe.com/reaction/1597737

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbazoleHCID 6854—
Reactant2-IodobutaneHCID 10559—
ReactantPotassium CarbonateHCID 11430—
ReactantPotassium HydroxideHCID 14797—
CatalystTetrabutylammonium hydrogen sulfateHCID 94433—
SolventDimethylformamideHCID 6228—
Product9-(Butan-2-yl)-9H-carbazoleHCID 2055262124.1%

Reaction Steps

30 g (179.46 mmol) of carbazole, 71 g of 85% KOH, 40 g of potassium carbonate, 6.0 g of tetra-n-butylammonium hydrogensulfate, 50.0 g (271.7 mmol) of 2-iodobutane and 300 ml of DMF were allowed to react and after treated in the same manner as with Example 7 (1) to obtain 9.66 g of 9-s-butylcarbazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05736284
Source datasetuspto-grants-1998_04
ORD IDord-4f59987bfe024d109d20984462e93033
Source noteuspto-grants-1998_04