Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 744874Generated: October 26, 2026

Benzene → 9-Methyl-9h-carbazol-2-ol

https://huagongshe.com/reaction/744874

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantMethyl iodideHCID 6328—
ReactantSodium HydroxideHCID 14798—
Reactant2-HydroxycarbazoleHCID 93551—
CatalystBenzyl triethylammonium chlorideHCID 66133—
SolventWaterHCID 962—
Product9-Methyl-9h-carbazol-2-olHCID 187840—

Reaction Steps

To a mixture comprising 20 g of 2-hydroxycarbazole, 3 g of benzyltriethyl ammonium chloride, 70 ml of a 50% aqueous solution of sodium hydroxide and 10 ml of benzene was added dropwise 25 g of methyl iodide. After the dropwise addition, the mixture was stirred for 2 hours. The mixture was poured into hot water and the mixture was allowed to stand at room temperature overnight. The precipitated solid was recovered by filtration, washed with water and dried to obtain a yellowish brown solid of 2-hydroxy-9-methylcarbazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05559231
Source datasetuspto-grants-1996_09
ORD IDord-975037668a094fdd82e19f58a1c40dbe
Source noteuspto-grants-1996_09