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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2120117Generated: November 2, 2026

Triethyl phosphite → 2-chloro-9H-carbazole

https://huagongshe.com/reaction/2120117

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethyl phosphiteHCID 31215—
Reactant4'-Chloro-2-nitro-1,1'-biphenylHCID 235549—
Product2-chloro-9H-carbazoleHCID 275238869.2%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 4′-Chloro-2-nitrobiphenyl (640 mg) and triethyl phosphite (1.9 ml) was heated at 150° C. for 3 hrs. The mixture was then allowed to cool and purified by flash chromatography (5-10% ethyl acetate/hexane) to afford the sub-title compound as a white solid (382 mg): 1H NMR (400 MHz, d6-DMSO) δ 7.12-7.23 (2H, m), 2.40 (1H, m), 7.46-7.54 (2H, m), 8.12 (2H, d).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06689784B2
Source datasetuspto-grants-2004_02
ORD IDord-e335c4570e614e218465562edf5b0502
Source noteuspto-grants-2004_02