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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 523869Generated: October 31, 2026

Benzene, 1-ethoxy-4-isocyanato- → HCID 66919725, compound

https://huagongshe.com/reaction/523869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzene, 1-ethoxy-4-isocyanato-HCID 122887—
Reactant3-(4,5-Dihydro-1H-imidazol-2-yl)aniline--hydrogen chloride--water (1/2/1)HCID 44119425—
SolventDimethylformamideHCID 6228—
ProductHCID 66919725HCID 6691972564%

Reaction Steps

A mixture of 3-(4,5-dihydro-1H-imidazol-2-yl) aniline dihydrochloride monohydrate (stored with 4 A molecular sieves, 48 mg, 0.19 mmol) and 4-ethoxyphenyl isocyanate (33 mg, 0.20 mmol) in dimethylformamide (2 ml) was stirred at room temperature overnight. After removal of the solvent, water (2 ml) was added and the resulting precipitate was collected (18 mg, 64% yield) by filtration. 1H NMR (600 MHz, DMSO-d6) δ 10.5 (br s, 1H), 9.12 (br s, 1H), 8.11 (s, 1H), 7.68 (d, 1H, J=8.4 Hz), 7.52 (t, 1H, 8.4 Hz), 7.47 (d, 1H, J=7.2 Hz), 7.35 (d, 2H, J=7.2 Hz), 6.86 (d, 2H, J=7.2 Hz), 3.98 (s, 4H). MS: m/z Calcd 324.4 Found MH+ 325.5

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340505B2
Source datasetuspto-grants-2016_05
ORD IDord-91129398df3b4086ba0f3023f6f700fe
Source noteuspto-grants-2016_05