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

HRID 1942626
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HRID 1942626 반응식
Br[C:2]1[N:6]=[C:5]([C:7]2[CH:12]=[CH:11][C:10]([O:13][CH:14]([CH3:16])[CH3:15])=[C:9]([Cl:17])[CH:8]=2)[S:4][N:3]=1.[CH2:18]([C:20]1[C:27](B2OC(C)(C)C(C)(C)O2)=[CH:26][CH:25]=[CH:24][C:21]=1[CH:22]=[O:23])[CH3:19].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.O.C(OCC)(=O)C.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>[Cl:17][C:9]1[CH:8]=[C:7]([C:5]2[S:4][N:3]=[C:2]([C:27]3[C:20]([CH2:18][CH3:19])=[C:21]([CH:24]=[CH:25][CH:26]=3)[CH:22]=[O:23])[N:6]=2)[CH:12]=[CH:11][C:10]=1[O:13][CH:14]([CH3:16])[CH3:15]
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참가 물질

8

반응물 3

HCID 62657Potassium Phosphate, TribasicHCID 584940852-Ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehydeHCID 584940863-Bromo-5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-thiadiazole

생성물 1

HCID 584940603-(5-{3-Chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-thiadiazol-3-yl)-2-ethylbenzaldehyde수율 77.6%

시약·촉매·용매 4

HCID 178418397
HCID 178418397, 화합물
촉매
HCID 962Water용매
HCID 6228Dimethylformamide용매
HCID 8857Ethyl Acetate용매

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온도
120 °C

실험 절차

To a solution of 3-bromo-5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-thiadiazole (D43) (500 mg), 2-ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (D5) (390 mg) and tripotassium phosphate (954 mg) in N,N-dimethylformamide (DMF) (3 mL) and water (0.75 mL) stirred under nitrogen was added Pd(Ph3P)4 (173 mg). The mixture was sealed and heated under microwave at 120° C. for 15 min. After cooling the reaction, the mixture was diluted with ethyl acetate (50 mL), the organic phase was washed with water, dried over sodium sulphate and concentrated, the residue was purified by column chromatography to give 3-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-thiadiazol-3-yl)-2-ethylbenzaldehyde (D53) (450 mg) as an oil. MS (ES): C20H19ClN2O2S requires 386. found 387.1 (M+H+).

후처리

  1. customThe mixture was sealed
  2. temperatureAfter cooling
  3. customthe reaction
  4. washthe organic phase was washed with water
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated
  7. customthe residue was purified by column chromatography

출처 및 근거

ORD 기록
ord-e7ed4966ed3e4e0aa36dfbd3537782bd
출처 데이터셋
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08389508B2

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