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

HRID 77497

反応式

HRID 77497 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-e4500a20d89a4aafa3a9db98fd3661f1
出典データセット
uspto-grants-2014_09
特許番号
US08841295B2

関連ノート

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