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Hydrogen Bromide → 2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-ol

HRID 1530474
ノート
印刷プレビュー

反応式

HRID 1530474 の反応式
[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[C:21]([O:23]C)[N:20]=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].Br>C(O)(=O)C>[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[C:21]([OH:23])[N:20]=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 260Hydrogen BromideHCID 5820487112-Methoxy-4-(2-propan-2-yl-1,2,4-triazol-3-yl)-9-oxa-3,6,13-triazatricyclo[8.4.0.02,6]tetradeca-1(14),2,4,10,12-pentaene

生成物 1

HCID 1360309132-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-ol収率 385.9%

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

反応条件

温度
80 °C

実験手順

A solution of 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-8-methoxy-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulene (1.0 g, 2.97 mmol) in acetic acid (40 mL) was treated with 48% aqueous HBr (37.7 mL) and heated at 80° C. for 5 h before being concentrated in vacuo. The resultant residue was suspended in water (60 mL) and pH adjusted to 6 using 5N aqueous NaOH. The precipitate formed was filtered off, washed with water then dried in vacuo. The resultant solid was triturated in acetone to give 2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-ol as a beige solid (3.58 g, 69%). LCMS RT=2.04 min, [M+H]+ =313. 1H NMR 400 MHz (DMSO-d6) δ: 8.42 (1H, s), 7.90 (1H, s), 7.83 (1H, s), 5.84 (1H, s), 5.78 (1H, m), 4.71-4.30 (4H, m), 1.45 (6H, d, J=6.60 Hz).

後処理

  1. concentrationbefore being concentrated in vacuo
  2. customThe precipitate formed
  3. filtrationwas filtered off
  4. washwashed with water
  5. customthen dried in vacuo
  6. customThe resultant solid was triturated in acetone

出典と根拠

ORDレコード
ord-d838da70f8304ea1905971c05d0c2846
出典データセット
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09090628B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート