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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 886113
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HRID 886113 반응식
[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]
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참가 물질

4

반응물 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

생성물 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-ol수율 385.9%

시약·촉매·용매 1

HCID 176Acetic Acid용매

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온도
80 °C

실험 절차

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-d) 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).

후처리

  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

출처 및 근거

ORD 기록
ord-baf4fc04164e4d0d8f28a1c6bd9fc1e1
출처 데이터셋
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08242104B2

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