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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2218770Generated: November 1, 2026

Sodium Carbonate → 5-(3,8-Difluoro-6H-dibenzo[b,e]oxepin-11-ylidenemethyl)-1-(2-morpholin-4-yl-ethyl)-1,3-dihydro-benzoimidazol-2-one

https://huagongshe.com/reaction/2218770

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant1-(2-Morpholin-4-yl-ethyl)-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3-dihydro-benzoimidazol-2-oneHCID 59770096—
ReactantHCID 67335876HCID 67335876—
CatalystHCID 178418397HCID 178418397—
Solvent1,4-DioxaneHCID 31275—
Product5-(3,8-Difluoro-6H-dibenzo[b,e]oxepin-11-ylidenemethyl)-1-(2-morpholin-4-yl-ethyl)-1,3-dihydro-benzoimidazol-2-oneHCID 6888950178%

Reaction Steps

Following procedures essentially as described in Example 219, mix 11-bromomethylene-3,8-difluoro-6,11-dihydro-dibenzo[b,e]oxepine (E-isomer, 40 mg, 0.12 mmol), 1-(2-morpholin-4-yl-ethyl)-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3-dihydro-benzoimidazol-2-one (44 mg, 0.12 mmol), Na2CO3 (2M in water, 155 μL, 0.310 mmol), dioxane (1 mL), and Pd(PPh3)4 (7 mg, 0.006 mmol). Purify on silica gel (12 g), eluting with 2% to 5% (2M NH3/MeOH)/CH2Cl2 to afford 45 mg (78%) of the title compound as a white foam. HPLC (ISO80-10) t=1.86 min, 99%; MS [ES] 488 (M−H), 490 (M+H); 1H-NMR (DMSO-d6) δ 10.70 (s, 1H), 7.59 (dd, 1H, J=8.5, 7.1 Hz), 7.51 (dd, 1H, J=8.8, 2.6 Hz), 7.08 (td, 1H, J12.5, 4.3 Hz), 7.01 (m, 2H), 6.96 (d, 1H, J=7.9 Hz), 6.80 (td, 1H, J=12.0, 4.2 Hz), 6.73 (d, 1H, J=7.9 Hz), 6.62 (dd, 1H, J=10.3, 2.4 Hz), 6.58 (s, 1H), 5.72-4.85 (br d, 2H), 3.81 (t, 2H, J=6.4 Hz), 3.47 (t, 4H, J=4.4 Hz), 2.48 (m, 2H), 2.38 (s, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07411072B2
Source datasetuspto-grants-2008_08
ORD IDord-09b60be737204ba9ab4d2979863f54f9
Source noteuspto-grants-2008_08