Sodium hydride → 4-(4-Methoxyphenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole

HRID 7099

Reaction equation

HRID 7099 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[N:10]=[CH:11][NH:12][CH:13]=2)=[CH:5][CH:4]=1.[H-].[Na+].[CH3:16][Si:17]([CH2:20][CH2:21][O:22][CH2:23]Cl)([CH3:19])[CH3:18]>>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[N:10]=[CH:11][N:12]([CH2:23][O:22][CH2:21][CH2:20][Si:17]([CH3:19])([CH3:18])[CH3:16])[CH:13]=2)=[CH:5][CH:4]=1

Participants

4

Reactant 3

HCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 178418716HCID 178418716, compound

Product 1

HCID 220185814-(4-Methoxyphenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazoleYield 64%

Procedure

Reaction of 4-(4-methoxyphenyl)-1H-imidazole (610 mg, 3.51 mmol), NaH (60%, 136 mg, 3.40 mmol), and SEMCl (656 uL, 3.71 mmol) followed by column chromatography on silica gel (hexane/EtOAC 1:1) gave the title compound (654 mg, 64%) as a yellow solid. 1H NMR (300 MHz, CDCl3) major isomer: δ 0.00 (s, 9H), 0.93 (t, 2H, J=7.5 Hz), 3.52 (t, 2H, J=7.5 Hz), 3.83 (s, 3H), 5.28 (s, 2H), 6.94 (d, 2H, J=9.0 Hz), 7.24 (s, 1H), 7.60 (s, 1H), 7.72 (d, 2H, J=9.0 Hz); minor isomer: δ 0.00 (s, 9H), 0.92 (t, 2H, J=7.5 Hz), 3.54 (t, 2H, J=7.5 Hz), 3.85 (s, 3H), 5.23 (s, 2H), 6.98 (d, 2H, J=9.0 Hz), 7.09 (s, 1H), 7.47 (d, 2H, J=9.0 Hz), 7.65 (s, 1H). ES-MS m/z 305 (M+H).

Sources & evidence

ORD record
ord-9da17a98ecc54954bc7c708f1d2b6ac4
Source dataset
uspto-grants-2006_08
Patent number
US07084155B2

Linked notes

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