Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1909034Generated: October 31, 2026

2-Methylbenzimidazole → HCID 49785640, compound

https://huagongshe.com/reaction/1909034

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-MethylbenzimidazoleHCID 11984—
Reactanttrans-N,N'-dimethyl-1,2-cyclohexanediamineHCID 2733821—
ReactantHCID 86664349HCID 86664349—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
SolventSodium chloride; waterHCID 57417360—
ProductHCID 49785640HCID 4978564014.1%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of (2-bromo-pyridin-4-yl)-[6-(4-dimethylamino-piperidin-1-yl)-1H-benzoimidazol-2-yl]-methanone (0.46 mmol, 1.0 mol eq.) [Example 102 (Method 1, Step 3)], 2-methyl benzimidazole (0.56 mmol, 1.2 mol eq), CuI (0.047 mmol, 0.5 mol eq.), (1R,2R)—N,N′-dimethyl-cyclohexane-1,2-diamine (0.093 mmol, 0.2 mol eq.) in 2 mL of DMF was heated at 130° C. for 48 h under nitrogen. The reaction was diluted with 50 mL EtOAc and 50 mL brine. The organic layer was separated and dried over Na2SO4, filtered and evaporated to dryness. HPLC purification gave the title compound (31 mg, 14%). HRMS m/z 480.2502 (M+H)+. 1H NMR (400 MHz, DMSO-d6): 8.96 (1H, d), 8.65 (1H, s), 8.30 (1H, d), 7.74-7.63 (3H, m), 7.31-7.29 (2H, m), 7.17 (1H, d), 6.93 (1H, s), 4.16 (1H, bs), 3.77-3.74 (2H, m), 2.80-2.71 (2H, m), 2.70 (3H, s), 2.20 (6H, s), 1.89-1.85 (2H, m), 1.57-1.48 (2H, m).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598217B2
Source datasetuspto-grants-2013_12
ORD IDord-66d01852ce5541aab92c7c7a6cd323dc
Source noteuspto-grants-2013_12