Azidotrimethylsilane → HCID 178497408、化合物

HRID 62423

反応式

HRID 62423 の反応式
[C:1]([C:3]1[CH:4]=[C:5]([C:16]([O:18][CH3:19])=[O:17])[C:6]2[C:7]([CH3:15])=[CH:8][N:9]([CH:12]([CH3:14])[CH3:13])[C:10]=2[CH:11]=1)#[N:2].[N:20]([Si](C)(C)C)=[N+:21]=[N-:22].O.O.O.[F-].C([N+](CCCC)(CCCC)CCCC)CCC.CO.C(Cl)Cl>CCOC(C)=O.CC(O)=O>[CH:12]([N:9]1[C:10]2[CH:11]=[C:3]([C:1]3[NH:22][N:21]=[N:20][N:2]=3)[CH:4]=[C:5]([C:16]([O:18][CH3:19])=[O:17])[C:6]=2[C:7]([CH3:15])=[CH:8]1)([CH3:14])[CH3:13]

参加物

7

反応物 4

HCID 78378AzidotrimethylsilaneHCID 11726816Tetrabutylammonium Fluoride TrihydrateHCID 21226129Dichloromethane methanolHCID 67467281methyl 6-cyano-1-isopropyl-3-methyl-1H-indole-4-carboxylate

生成物 1

HCID 178497408HCID 178497408、化合物収率 48%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
85 °C

実験手順

To a stirred suspension of methyl 6-cyano-1-isopropyl-3-methyl-1H-indole-4-carboxylate (0.50 g, 1.951 mmol) in azidotrimethylsilane (1.0 mL, 7.53 mmol) in a small vial was added tetrabutylammonium fluoride trihydrate (300 mg, 0.951 mmol). The reaction was heated to 85° C. and stirred for 18 hr (attached a small reflux condenser). (The reaction became a semi-solid mass.) The reaction was taken up in EtOAc (75 mL), washed with 1 N HCl (75 mL) (stirred till dissolved). The organic phase was removed, dried (Na2SO4), filtered and concentrated under vacuum. Purification by silica gel chromatography (Analogix, SF40-80 g, 0 to 3% MeOH/CH2Cl2 with 0.1% HOAc) gave the product methyl 1-isopropyl-3-methyl-6-(1H-tetrazol-5-yl)-1H-indole-4-carboxylate (0.28 g, 0.935 mmol, 48.0% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 8.40 (d, J=1.3 Hz, 1H), 8.15 (d, J=1.5 Hz, 1H), 7.69 (s, 1H), 4.86 (quin, J=6.6 Hz, 1H), 3.94 (s, 3H), 2.33 (s, 3H), 1.50 (d, J=6.6 Hz, 6H). MS(ES)+ m/e 300.3 [M+H]+.

後処理

  1. washwashed with 1 N HCl (75 mL) (stirred till dissolved)
  2. customThe organic phase was removed
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated under vacuum
  6. customPurification by silica gel chromatography (Analogix

出典と根拠

ORDレコード
ord-77cab358e5e0421eaefc27946375a9a0
出典データセット
uspto-grants-2016_09
特許番号
US09446041B2

関連ノート

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