Sodium Carbonate → 5-(3-Chloro-6H-dibenzo[b,e]oxepin-11-ylidenemethyl)-1,3-dihydro-benzoimidazol-2-one

HRID 2218767Notes

Reaction equation

HRID 2218767 reaction equation
Br[CH:2]=[C:3]1[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[CH2:7][O:6][C:5]2[CH:14]=[C:15]([Cl:18])[CH:16]=[CH:17][C:4]1=2.CC1(C)C(C)(C)OB([C:27]2[CH:36]=[CH:35][C:30]3[NH:31][C:32](=[O:34])[NH:33][C:29]=3[CH:28]=2)O1.C([O-])([O-])=O.[Na+].[Na+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O1CCOCC1>[Cl:18][C:15]1[CH:16]=[CH:17][C:4]2[C:3](=[CH:2][C:27]3[CH:36]=[CH:35][C:30]4[NH:31][C:32](=[O:34])[NH:33][C:29]=4[CH:28]=3)[C:9]3[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=3[CH2:7][O:6][C:5]=2[CH:14]=1

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 438110655-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-2(3H)-oneHCID 68888097HCID 68888097, compound

Product 1

HCID 688886615-(3-Chloro-6H-dibenzo[b,e]oxepin-11-ylidenemethyl)-1,3-dihydro-benzoimidazol-2-oneYield 70.1%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

Following procedures essentially as described in Example 219, mix 11-bromomethylene-3-chloro-6,11-dihydro-dibenzo[b,e]oxepine (E-isomer, 40 mg, 0.124 mmol) (prepared essentially as described in Preparation 55), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3-dihydro-benzoimidazol-2-one (31 mg, 0.118 mmol), Na2CO3 (2M in water, 148 □L, 0.295 mmol), dioxane (1 mL), and Pd(PPh3)4 (7 mg, 0.006 mmol). Purify the crude product on silica gel (12 g) eluting with 2% to 5% (2M NH3/MeOH)/CH2Cl2 to afford 31 mg (69%) of the title compound as a white solid. HPLC (ISO80-10) t=2.85min, 99%; MS [ES] 373 (M−H); 1H-NMR (DMSO-d6) 10.57 (s, 1H), 10.47 (s, 1H), 7.56 (dd, 2H, J=7.8, 6.1 Hz), 7.35 (t, 1H, J=7.5 Hz), 7.24 (t, 1H, J=7.7 Hz), 6.98 (m, 3H), 6.82 (d, 1H, J=4.4 Hz), 6.69 (m, 2H), 6.57 (s, 1H), 5.89-4.79 (br d, 2H).

Workup

  1. customprepared essentially
  2. customPurify the crude product on silica gel (12 g)
  3. washeluting with 2% to 5% (2M NH3/MeOH)/CH2Cl2

Sources & evidence

ORD record
ord-b8f383f29b3341faa703c6fac937df4a
Source dataset
uspto-grants-2008_08
Patent number
US07411072B2

Reaction notes

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