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Benzoyl chloride, 3,4,5-trimethoxy- → (2-(Phenylamino)-1-trityl-1H-imidazol-4-yl)(3,4,5 trimethoxyphenyl)methanone

HRID 63228
Notes
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Reaction equation

HRID 63228 reaction equation
[Li]C(C)(C)C.[C:6]1([NH:12][C:13]2[N:14]([C:18]([C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH:15]=[CH:16][N:17]=2)[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.[CH3:37][O:38][C:39]1[CH:40]=[C:41]([CH:45]=[C:46]([O:50][CH3:51])[C:47]=1[O:48][CH3:49])[C:42](Cl)=[O:43]>C1COCC1>[C:6]1([NH:12][C:13]2[N:14]([C:18]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)[CH:15]=[C:16]([C:42]([C:41]3[CH:45]=[C:46]([O:50][CH3:51])[C:47]([O:48][CH3:49])=[C:39]([O:38][CH3:37])[CH:40]=3)=[O:43])[N:17]=2)[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 78282Benzoyl chloride, 3,4,5-trimethoxy-HCID 66794278N-Phenyl-1-trityl-1H-imidazol-2-amineHCID 178418306HCID 178418306, compound

Product 1

HCID 66780583(2-(Phenylamino)-1-trityl-1H-imidazol-4-yl)(3,4,5 trimethoxyphenyl)methanoneYield 43.7%

Reagents, catalysts & solvents 1

HCID 8028
Tetrahydrofuran
Solvent
2×

Procedure

At −78° C., t-BuLi in THF (1.7 M, 0.34 mL, 0.58 mmol) was added to a solution of trityl protected compound (d) (116 mg, 0.289 mmol) in THF. Then 3,4,5-trimethoxybenzoyl chloride (66.5 mg, 0.289 mmol) was added and stirred overnight. The reaction mixture was quenched with saturated NH4Cl, and dried with MgSO4. Filtration and evaporation of the solvent followed by chromatography afforded compound (e) (75 mg, 43.7%). 1H NMR (500 MHz, CDCl3) δ 7.55-7.41 (m, 5H), 7.32 (s, 1H), 7.28-7.18 (m, 15H), 6.94 (s, 2H), 3.78 (s, 6H), 3.70 (s, 3H). MS: 594.2 (M−H)−; 596.3 (M+H)+.

Workup

  1. customThe reaction mixture was quenched with saturated NH4Cl
  2. dry with materialdried with MgSO4
  3. filtrationFiltration and evaporation of the solvent

Sources & evidence

ORD record
ord-bb3f8e48cc10469783a6f272d7bc68d3
Source dataset
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09447049B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes