4-Chloro-2-(methylthio)pyrimidine-5-carboxylic acid ethyl ester → Ethyl 4-[2-(2-chlorophenyl)hydrazino]-2-(methylthio)pyrimidine-5-carboxylate

HRID 545226

반응식

HRID 545226 반응식
C(N(CC)C(C)C)(C)C.Cl[C:11]1[C:16]([C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:15][N:14]=[C:13]([S:22][CH3:23])[N:12]=1.Cl.[Cl:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[NH:32][NH2:33]>O1CCCC1>[Cl:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[NH:32][NH:33][C:11]1[C:16]([C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:15][N:14]=[C:13]([S:22][CH3:23])[N:12]=1

참가 물질

5

실험 절차

At room temperature, 16.2 mL of N,N-diisopropylethylamine was added to tetrahydrofuran (300 mL) solution of 9.4 g of ethyl 4-chloro-2-(methylthio)pyrimidine-5-carboxylate and 8.3 g of 2-chlorophenylhydrazine hydrochloride, and heated under reflux for 18 hours. The solvent was concentrated under reduced pressure, water was added to this, and extracted with ethyl acetate, and the ethyl acetate layer was washed with saturated saline water, and dried with anhydrous sodium sulfate. The solvent was evaporated away under reduced pressure to obtain crude ethyl 4-[2-(2-chlorophenyl)hydrazino]-2-(methylthio)pyrimidine-5-carboxylate as a yellow oily substance.

후처리

  1. temperatureheated
  2. temperatureunder reflux for 18 hours
  3. concentrationThe solvent was concentrated under reduced pressure, water
  4. additionwas added to this, and
  5. extractionextracted with ethyl acetate
  6. washthe ethyl acetate layer was washed with saturated saline water
  7. dry with materialdried with anhydrous sodium sulfate
  8. customThe solvent was evaporated away under reduced pressure

출처 및 근거

ORD 기록
ord-48d5b8a2b45f43f19f7c8741247eb5ef
출처 데이터셋
uspto-grants-2011_05
특허 번호
US07935708B2

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