Diisopropylethylamine → 5-biphenyl-4-yl-6-chloro-2-(methylsulfonyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-benzimidazole

HRID 340767ノート

反応式

HRID 340767 の反応式
[C:1]1([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[CH:6]=[CH:5][C:4]([C:7]2[C:19]([Cl:20])=[CH:18][C:10]3[NH:11][C:12]([S:14]([CH3:17])(=[O:16])=[O:15])=[N:13][C:9]=3[CH:8]=2)=[CH:3][CH:2]=1.CCN(C(C)C)C(C)C.[CH3:36][Si:37]([CH2:40][CH2:41][O:42][CH2:43]Cl)([CH3:39])[CH3:38]>C1COCC1.CCOC(C)=O>[C:1]1([C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=2)[CH:6]=[CH:5][C:4]([C:7]2[C:19]([Cl:20])=[CH:18][C:10]3[N:11]([CH2:43][O:42][CH2:41][CH2:40][Si:37]([CH3:39])([CH3:38])[CH3:36])[C:12]([S:14]([CH3:17])(=[O:15])=[O:16])=[N:13][C:9]=3[CH:8]=2)=[CH:3][CH:2]=1

参加物

6

反応物 3

HCID 81531DiisopropylethylamineHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 684868865-biphenyl-4-yl-6-chloro-2-(methylsulfonyl)-1H-benzimidazole

生成物 1

HCID 583871305-biphenyl-4-yl-6-chloro-2-(methylsulfonyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-benzimidazole

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 5-biphenyl-4-yl-6-chloro-2-(methylsulfonyl)-1H-benzimidazole (5.37 g, 14.0 mmol) in THF (70 mL) was added DIPEA (3.67 mL, 21.0 mmol) followed by SEMCl (3.7 mL, 21.0 mmol). The reaction was maintained for 5 h at ambient temperature. Then the reaction mixture was diluted with EtOAc and washed with saturated aqueous NaHCO3, followed by brine. The organic phase was dried over Na2SO4, filtered, and concentrated. Chromatography of the resulting residue over silica eluting with 5-25% EtOAc/hexanes afforded the desired product as a white solid. LC-MS: calculated for C14H20ClN2O3SSi 485.97, observed m/e 428.83 (M+H)+ (Rt 2.30 min).

後処理

  1. washwashed with saturated aqueous NaHCO3
  2. dry with materialThe organic phase was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-6238e7b8a5e4458f9a7b58f8f0b4211d
出典データセット
uspto-grants-2014_11
特許番号
US08895596B2

反応ノート

読み込み中…