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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45936Generated: October 25, 2026

2-Pentanone → HCID 178446244, compound

https://huagongshe.com/reaction/45936

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-PentanoneHCID 7895—
Reactant5-AminobenzimidazoleHCID 13623—
ReactantSodium borohydrideHCID 4311764—
ProductHCID 178446244HCID 178446244—

Reaction Steps

The compound was synthesized starting from benzimidazol-5-amine (399 mg; 3 mmol; 1 eq.), 2-pentanal (284 mg; 0.351 ml; 3.3 mmol; 1.1 eq) and NaBH4 (228 mg; 6 mmol; 2 eq.) as described in method 3; Yield: 0.264 g (43.3%); MS m/z: 204.4 [M+H]+; 1H-NMR (400 MHz, DMSO d6): δ 0.88 (t, 3H, 3J=7.5 Hz); 1.10 (d, 3H, 3J=6.2 Hz); 1.32-1.42 (m, 3H); 1.49-1.56 (m, 1H); 3.35-3.37 (m, 1H); 5.02 (br s, 1H); 6.52-6.55 (m, 2H); 7.25 (d, 1H, 3J=8.7 Hz); 7.83 (s, 1H); 11.81 (br s, 1H); HPLC (METHOD [A]): rt 7.79 min (80.5%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541596B2
Source datasetuspto-grants-2013_09
ORD IDord-aa0239e5125640829266c7257fd1c688
Source noteuspto-grants-2013_09