tert-Butyl mercaptan → Ethyl 4-(tert-butylthio)-3-oxobutanoate

HRID 1948887

反応式

HRID 1948887 の反応式
Cl[CH2:2][C:3](=[O:10])[CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6].[CH3:11][C:12]([SH:15])([CH3:14])[CH3:13].C(N(CC)CC)C>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.C1COCC1>[CH2:8]([O:7][C:5](=[O:6])[CH2:4][C:3](=[O:10])[CH2:2][S:15][C:12]([CH3:14])([CH3:13])[CH3:11])[CH3:9]

参加物

6

反応物 3

HCID 6387tert-Butyl mercaptanHCID 8471TriethylamineHCID 69484Ethyl 4-chloroacetoacetate

生成物 1

HCID 10465978Ethyl 4-(tert-butylthio)-3-oxobutanoate

試薬・触媒・溶媒 2

HCID 74236Tetrabutylammonium Bromide触媒HCID 8028Tetrahydrofuran溶媒

実験手順

Ethyl 4-chloroacetoacetate (7.5 mL, 51.9 mmol), 2-methyl-2-propanethiol (5.6 mL, 49.7 mmol), triethylamine (10.8 mL, 77.4 mmol), and catalytic tetrabutylammonium bromide were dissolved in THF (250 mL) and stirred at room temperature overnight. Silica gel was added, and the mixture was concentrated and filtered over a plug of silica gel to obtain the desired product (B-1), which was used without further purification.

後処理

  1. additionSilica gel was added
  2. concentrationthe mixture was concentrated
  3. filtrationfiltered over a plug of silica gel

出典と根拠

ORDレコード
ord-5ec9328f963847768482c3c278621ee9
出典データセット
uspto-grants-2013_03
特許番号
US08399666B2

関連ノート

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