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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 900028Generated: October 31, 2026

Carbazole → HCID 5147738, compound

https://huagongshe.com/reaction/900028

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbazoleHCID 6854—
Reactant1-BromopentaneHCID 8057—
ReactantSodium HydroxideHCID 14798—
CatalystBenzyl triethylammonium chlorideHCID 66133—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 5147738HCID 5147738—

Reaction Steps

Compound (15) can be prepared according to the following procedure. Carbazole (16.7 g, 0.1 mol, commercially available from Aldrich, Milwaukee, Wis.), 1-bromopentane (15.1 g, 0.1 mol, commercially available from Aldrich, Milwaukee, Wis.), and benzyltriethyl ammonium chloride (1.7 g) are dissolved in tetrahydrofuran (60 mL) and a concentrated solution of sodium hydroxide (17 g) in water (17 mL) is added. The mixture is heated at reflux with strong mechanical stirring for 4 hours, then cooled to room temperature and poured into an excess of water. The solid that precipitated is filtered off and the tetrahydrofuran layer is dried (MgSO4) and concentrated to dryness. The combined organic solids were recrystallized to form 9-pentylcarbazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07358014B2
Source datasetuspto-grants-2008_04
ORD IDord-19655ecae1244bd3bf4a162a76b3be34
Source noteuspto-grants-2008_04