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Potassium Phosphate, Tribasic → 2-Ethyl-3-{5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazol-2-yl}benzaldehyde

HRID 1942585
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HRID 1942585 반응식
Br[C:2]1[S:3][C:4]([C:7]2[CH:12]=[CH:11][C:10]([O:13][CH:14]([CH3:16])[CH3:15])=[C:9]([C:17]([F:20])([F:19])[F:18])[CH:8]=2)=[N:5][N:6]=1.[CH2:21]([C:23]1[C:30](B2OC(C)(C)C(C)(C)O2)=[CH:29][CH:28]=[CH:27][C:24]=1[CH:25]=[O:26])[CH3:22].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:21]([C:23]1[C:30]([C:2]2[S:3][C:4]([C:7]3[CH:12]=[CH:11][C:10]([O:13][CH:14]([CH3:16])[CH3:15])=[C:9]([C:17]([F:20])([F:19])[F:18])[CH:8]=3)=[N:5][N:6]=2)=[CH:29][CH:28]=[CH:27][C:24]=1[CH:25]=[O:26])[CH3:22]
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참가 물질

7

반응물 3

HCID 62657Potassium Phosphate, TribasicHCID 584940852-Ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehydeHCID 669817782-Bromo-5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazole

생성물 1

HCID 866589982-Ethyl-3-{5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazol-2-yl}benzaldehyde수율 52.7%

시약·촉매·용매 3

HCID 178418397
HCID 178418397, 화합물
촉매
HCID 962Water용매2회
HCID 6228Dimethylformamide용매

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온도
130 °C

실험 절차

To a solution of 2-bromo-5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazole (D4) (100 mg), 2-ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (D5) (85 mg) and tripotassium phosphate (145 mg) in N,N-dimethylformamide (DMF) (6 mL) and water (1.5 mL) stirred under nitrogen at room temperature was added Pd(Ph3P)4 (31.5 mg). The reaction vessel was sealed and heated under microwave at 130° C. for 8 min. After cooling the reaction, water was added to quench the reaction. After filtered through the celite, the filtrate was partitioned between the organic and aqueous layers. The aqueous layer was extracted with EA for 3 times. The combined organic layers were washed with brine, dried over anhydrous sodium sulfate. The dried solution was concentrated, and purified by column chromatography to afford 2-ethyl-3-{5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazol-2-yl}benzaldehyde (D6) (60.4 mg). MS (ES): C21H19F3N2O2S requires 420. found 421.1 (M+H+).

후처리

  1. customThe reaction vessel was sealed
  2. temperatureAfter cooling
  3. additionwas added
  4. customto quench
  5. customthe reaction
  6. filtrationAfter filtered through the celite
  7. customthe filtrate was partitioned between the organic and aqueous layers
  8. extractionThe aqueous layer was extracted with EA for 3 times
  9. washThe combined organic layers were washed with brine
  10. dry with materialdried over anhydrous sodium sulfate
  11. concentrationThe dried solution was concentrated
  12. custompurified by column chromatography

출처 및 근거

ORD 기록
ord-604cb6c9d500497ea86d9e96277ea43b
출처 데이터셋
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08389508B2

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