Sodium Carbonate → 1-(4-chloro-phenyl)-4-(thiophen-2-yl)-1H-1,2,3-triazole

HRID 705007

반응식

HRID 705007 반응식
[C:1]([C:3]1[S:4][CH:5]=[CH:6][CH:7]=1)#[CH:2].[Cl:8][C:9]1[CH:14]=[CH:13][C:12](I)=[CH:11][CH:10]=1.N1CCC[C@H]1C(O)=O.C([O-])([O-])=O.[Na+].[Na+].O=C1O[C@H]([C@H](CO)O)C([O-])=C1O.[Na+].[N-:43]=[N+:44]=[N-:45].[Na+]>CS(C)=O.O>[Cl:8][C:9]1[CH:14]=[CH:13][C:12]([N:43]2[CH:2]=[C:1]([C:3]3[S:4][CH:5]=[CH:6][CH:7]=3)[N:45]=[N:44]2)=[CH:11][CH:10]=1

참가 물질

8

반응물 6

HCID 10340Sodium CarbonateHCID 125101-Chloro-4-iodobenzeneHCID 33557Sodium AzideHCID 145742L-ProlineHCID 52462582-EthynylthiopheneHCID 23667548Sodium Ascorbate

생성물 1

HCID 863036561-(4-chloro-phenyl)-4-(thiophen-2-yl)-1H-1,2,3-triazole수율 5.5%

시약·촉매·용매 1

HCID 23503278(Methanesulfinyl)methane--water (1/1)용매

반응 조건

온도
65 °C

실험 절차

A sealed tube was sequentially charged with 2-ethynylthiophene (250 mg, 2.31 mol), 1-chloro-4-iodobenzene (551 mg, 2.31 mmol, 1.0 eq.), L-proline (53 mg, 0.462 mmol, 0.2 eq.), Na2CO3 (50 mg, 0.462 mmol, 0.2 eq.), sodium ascorbate (91 mg, 0.462 mmol, 0.2 eq.), and 4 mL of DMSO:H2O (9:1). Then NaN3 (180 mg 2.77 mmol, 1.2 eq.) and CuSO4.5H2O (58 mg. 0.231 mmol, 0.1 eq.) were added, and the vessel was sealed. The suspension was stirred at 65° C. for 16 hours. The reaction mixture was then poured into ice-water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over Na2SO4, and concentrated under vacuum. The crude product was then purified by silica column (100-200) using 15-20% ethyl acetate/hexanes to yield 1-(4-chloro-phenyl)-4-(thiophen-2-yl)-1H-1,2,3-triazole as a brown solid compound (34 mg, 0.13 mmol yield 5.5%). LC-MS [M+H] 261.8 (C12H8ClN3S+H, expected 262.01). The 1H-NMR spectra was in accordance with the chemical structure.

후처리

  1. customthe vessel was sealed
  2. extractionextracted with ethyl acetate
  3. customThe organic layer was separated
  4. washwashed with brine
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated under vacuum
  7. customThe crude product was then purified by silica column (100-200)

출처 및 근거

ORD 기록
ord-98291ba7bf5f41a3af2e440f61c0ee4c
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09173401B2

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