1-Bromo-3-chloropropane → 1-(3-chloropropyl)-1H-1,2,3-benzotriazole

HRID 51003노트

반응식

HRID 51003 반응식
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[N:2]1.[OH-].[Na+].Br[CH2:13][CH2:14][CH2:15][Cl:16]>CS(C)=O.CCOC(C)=O>[Cl:16][CH2:15][CH2:14][CH2:13][N:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[N:2]1

참가 물질

6

반응물 3

HCID 80061-Bromo-3-chloropropaneHCID 14798Sodium HydroxideHCID 178418385HCID 178418385, 화합물

생성물 1

HCID 52439381-(3-chloropropyl)-1H-1,2,3-benzotriazole수율 34%

시약·촉매·용매 2

HCID 679Dimethyl Sulfoxide용매HCID 8857Ethyl Acetate용매

반응 조건

온도
20 °C

실험 절차

To a solution of benzotriazole (303 mg, 2.54 mmol) and powdered NaOH (101 mg, 2.52 mmol) in DMSO was added 1-bromo-3-chloro propane (437 mg, 2.77 mmol). The reaction mixture was stirred for 16 h at 20° C. The reaction mixture was then diluted with EtOAc (100 mL) and washed with H2O (100 mL) and saturated NaCl (100 mL), dried over MgSO4 and concentrated in vacuo. Column purification (hexanes:EtOAc 4:1) yielded 1-(3-chloropropyl)-1H-1,2,3-benzotriazole (167 mg, 34%). The title compound was prepared according to Example 286, Step C as a yellow oil (21 mg, 42%) from (8aS,12aR)-6,7,8a,9,10,11,12,12a-octahydro-5H-pyrido[4,3-b]l[1,4]thiazepino[2,3,4-hi]indole (30 mg, 0.12 mmol) and 1-(3-chloropropyl)-1H-1,2,3-benzotriazole (48 mg, 0.24 mmol). 1H NMR (CDCl3) δ1.88-1.98 (m, 3H), 1.99-2.18 (m, 2H), 2.20-2.41 (m, 5H), 2.51-2.60 (m, 1H), 2.64-2.71 (m, 1H), 2.89-3.00 (m, 1H), 3.03-3.13 (m, 2H), 3.21-3.27 (m, 1H), 3.47-3.60 (m, 1H), 3.76-3.88 (m, 1H), 4.73 (t, 2H, J=6.6 Hz), 6.61 (t, 1H, J=7.4 Hz), 6.84 (d, 1H, J=6.6 Hz), 6.94 (dd, 1H, J=1.1, 8.1 Hz), 7.37 (td, 1H, J=1.1, 7.4 Hz), 7.49 (td, 1H, J=1.1, 7.8 Hz), 7.57 (d, 1H, J=8.0 Hz), 8.07 (d, 1H, J=8.4 Hz) ppm.

후처리

  1. washwashed with H2O (100 mL) and saturated NaCl (100 mL)
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated in vacuo
  4. customColumn purification (hexanes:EtOAc 4:1)

출처 및 근거

ORD 기록
ord-8f85a4fc620b49b78d6965cc544626eb
출처 데이터셋
uspto-grants-2004_03
특허 번호
US06713471B1

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