Potassium Phosphate, Tribasic → 5-[5-(2-Ethyl-3-formylphenyl)-1,3,4-thiadiazol-2-yl]-2-(2-methylpropyl)benzonitrile

HRID 1942603ノート

反応式

HRID 1942603 の反応式
Br[C:2]1[S:6][C:5]([C:7]2[CH:8]=[CH:9][C:10]([CH2:15][CH:16]([CH3:18])[CH3:17])=[C:11]([CH:14]=2)[C:12]#[N:13])=[N:4][N:3]=1.[CH2:19]([C:21]1[C:28](B2OC(C)(C)C(C)(C)O2)=[CH:27][CH:26]=[CH:25][C:22]=1[CH:23]=[O:24])[CH3:20].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>[CH2:19]([C:21]1[C:22]([CH:23]=[O:24])=[CH:25][CH:26]=[CH:27][C:28]=1[C:2]1[S:6][C:5]([C:7]2[CH:8]=[CH:9][C:10]([CH2:15][CH:16]([CH3:18])[CH3:17])=[C:11]([CH:14]=2)[C:12]#[N:13])=[N:4][N:3]=1)[CH3:20]

参加物

7

反応物 3

HCID 62657Potassium Phosphate, TribasicHCID 584940852-Ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehydeHCID 669818275-(5-Bromo-1,3,4-thiadiazol-2-yl)-2-(2-methylpropyl)benzonitrile

生成物 1

HCID 866590005-[5-(2-Ethyl-3-formylphenyl)-1,3,4-thiadiazol-2-yl]-2-(2-methylpropyl)benzonitrile収率 54.1%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒2 回HCID 6228Dimethylformamide溶媒

反応条件

温度
120 °C

実験手順

To a suspension of 5-(5-bromo-1,3,4-thiadiazol-2-yl)-2-(2-methylpropyl)benzonitrile (D26) (100 mg), 2-ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (D5) (121 mg) and tripotassium phosphate (165 mg) in N,N-dimethylformamide (DMF) (4 mL) and water (1 mL) under nitrogen was added Pd(Ph3P)4 (35.9 mg). The reaction vessel was sealed and heated under microwave at 120° C. for 10 min. Water was added. The reaction mixture 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 5-[5-(2-ethyl-3-formylphenyl)-1,3,4-thiadiazol-2-yl]-2-(2-methylpropyl)benzonitrile (D27) (63 mg) as a yellow solid. MS (ES): C22H21N3OS requires 375. found 376.2 (M+H+).

後処理

  1. customThe reaction vessel was sealed
  2. extractionThe reaction mixture was extracted with EA for 3 times
  3. washthe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationthe dried solution was concentrated
  6. custompurified by column chromatography

出典と根拠

ORDレコード
ord-cda8282f1b394d34b557576a3e85a9c6
出典データセット
uspto-grants-2013_03
特許番号
US08389508B2

反応ノート

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