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Potassium Carbonate → N-(6-(1H-indol-5-yl)naphthalen-2-yl)thiophene-3-carboxamide

HRID 908300
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HRID 908300 반응식
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[CH:5]2.CC1(C)C(C)(C)OB([C:19]2[CH:20]=[C:21]3[C:26](=[CH:27][CH:28]=2)[CH:25]=[C:24]([NH:29][C:30]([C:32]2[CH:36]=[CH:35][S:34][CH:33]=2)=[O:31])[CH:23]=[CH:22]3)O1.C([O-])([O-])=O.[K+].[K+].O1CCOCC1>[Pd].O>[NH:7]1[C:8]2[C:4](=[CH:3][C:2]([C:19]3[CH:20]=[C:21]4[C:26](=[CH:27][CH:28]=3)[CH:25]=[C:24]([NH:29][C:30]([C:32]3[CH:36]=[CH:35][S:34][CH:33]=3)=[O:31])[CH:23]=[CH:22]4)=[CH:10][CH:9]=2)[CH:5]=[CH:6]1
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참가 물질

7

반응물 4

HCID 11430Potassium CarbonateHCID 249055-BromoindoleHCID 312751,4-DioxaneHCID 67386422N-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-yl)thiophene-3-carboxamide

생성물 1

HCID 58828860N-(6-(1H-indol-5-yl)naphthalen-2-yl)thiophene-3-carboxamide수율 21%

시약·촉매·용매 2

HCID 23938
Palladium
촉매
HCID 962Water용매

실험 절차

5-bromo-1H-indole (31.4 mg, 0.160 mmol), N-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-yl)thiophene-3-carboxamide (114 mg, 0.301 mmol), Fibercat palladium catalyst (Johnson-Matthey, 31 mg), and K2CO3 (2 M in water, 0.45 ml, 0.90 mmol) were combined in a microwave reaction vessel and 1,4-dioxane (1.5 ml) was added. The reaction tube was sealed and heated in the microwave (CEM microwave) at 60 Watts and 80 C for 20 minutes. The reaction was cooled to room temperature, diluted with water (5 ml), and extracted with EtOAc (3×10 ml). The organic extracts were combined, dried over sodium sulfate, filtered, concentrated, and purified on silica gel (5:1->4:1->2:1 hexanes/EtOAc) to afford crude product. This crude material was then purified two times via HPLC (10%->95% MeCN/water with 0.1% TFA) afford title compound (12.2 mg, 21%). MS (ESI pos. ion) m/z: 369 (M+H). Calc'd Exact Mass for C23H16N2OS: 368.

후처리

  1. additionwas added
  2. customThe reaction tube was sealed
  3. temperatureheated in the microwave (CEM microwave) at 60 Watts and 80 C for 20 minutes
  4. extractionextracted with EtOAc (3×10 ml)
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. custompurified on silica gel (5:1->4:1->2:1 hexanes/EtOAc)
  9. customto afford crude product
  10. customThis crude material was then purified two times via HPLC (10%->95% MeCN/water with 0.1% TFA)

출처 및 근거

ORD 기록
ord-c986e6e4b9b149af994f51f451873ebe
출처 데이터셋
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08017601B2

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