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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1810106Generated: October 31, 2026

2-(4-Chlorophenyl)ethylamine → HCID 178523202, compound

https://huagongshe.com/reaction/1810106

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(4-Chlorophenyl)ethylamineHCID 67430—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
ReactantHCID 178524171HCID 178524171—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178523202HCID 178523202100%

Reaction Steps

To a mixture of 1H-benzo[d]imidazole-5carboxylic acid (1.00 g, 6.17 mmol) and HBTU (2.57 g, 6.78 mmol) in 10 mL DMF was added DIEA (1.29 mL, 7.40 mmol) followed by 2-(4-chlorophenyl)ethanamine (1.15 g, 6.78 mmol). The reaction was stirred overnight and then diluted with water. The reaction mixture was extracted with ethyl acetate. The combined organic layers were washed with brine, dried, filtered and concentrated onto silica gel. The residue was purified by flash column chromatography, eluting with 12:1 DCM:MeOH, to provide N-(4chlorophenethyl)-1H-benzo[d]imidazole-5-carboxamide (0.944 g, 6.17 mmol, 51%) as a light pink solid. MS (APCI)=300.3 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362056B2
Source datasetuspto-grants-2013_01
ORD IDord-767c6aef90da483bb3f6685097d8d398
Source noteuspto-grants-2013_01