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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 452084Generated: October 30, 2026

5-Aminobenzimidazole → HCID 178517643, compound

https://huagongshe.com/reaction/452084

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-AminobenzimidazoleHCID 13623—
Reactant2,3-DichlorobenzaldehydeHCID 35745—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantTrimethylsilyl cyanideHCID 82115—
ProductHCID 178517643HCID 178517643—

Reaction Steps

The compound was synthesized starting from 5-aminobenzimidazole (0.585 g, 4.4 mmol), 2,3-dichloro-benzaldehyde (0.700 g, 4 mmol), TMSCN (0.5 mL, 4 mmol), PdC (10%, 0.02 g), TEA (0.5 mL, 3.6 mmol), di-(imidazol-1-yl)methanone (0.308, 1.9 mmol) as described in method 2. Yield: 0.014 g (1%); MS m/z 347.2 (M+H)+; 1H NMR (DMSO, 400 MHz): δ 3.08-3.11 (m, H); 3.96-4.01 (m, H); 5.83-5.86 (m, H); 7.09 (s, H); 7.24-7.30 (m, 3H); 7.44 (s, H); 7.52-7.56 (m, 2H); 8.08 (s, H); 12.23 (bs, H), HPLC (λ=214 nm, [B]: rt 9.28 min (94.1%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08486940B2
Source datasetuspto-grants-2013_07
ORD IDord-be5ad114bd3049a594bc5f08017620d1
Source noteuspto-grants-2013_07