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Phenylsilane → 5-(3,3-dimethyl-but-1-ynyl)-3-(N-tert-butoxycarbonyl-piperidin-4-yl)amino-thiophene-2-carboxylic acid methyl ester

HRID 1675560
ノート
印刷プレビュー

反応式

HRID 1675560 の反応式
[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:11]#[C:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[CH:8][C:9]=1[NH2:10])=[O:4].[C:17]([O:21][C:22]([N:24]1[CH2:29][CH2:28][C:27](=O)[CH2:26][CH2:25]1)=[O:23])([CH3:20])([CH3:19])[CH3:18].C1([SiH3])C=CC=CC=1>C1COCC1.C(Cl)Cl.C([Sn](Cl)(Cl)CCCC)CCC>[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:11]#[C:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[CH:8][C:9]=1[NH:10][CH:27]1[CH2:28][CH2:29][N:24]([C:22]([O:21][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:23])[CH2:25][CH2:26]1)=[O:4]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 3

HCID 12752Phenylsilane2 回HCID 735900tert-Butyl 4-oxopiperidine-1-carboxylate2 回HCID 24989346Methyl 3-amino-5-(3,3-dimethylbut-1-yn-1-yl)thiophene-2-carboxylate

生成物 1

HCID 666035305-(3,3-dimethyl-but-1-ynyl)-3-(N-tert-butoxycarbonyl-piperidin-4-yl)amino-thiophene-2-carboxylic acid methyl ester収率 204.8%

試薬・触媒・溶媒 3

HCID 12688
Dibutyltin dichloride
触媒
2 回
HCID 6344Dichloromethane溶媒
HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of 5-(3,3-dimethyl-but-1-ynyl)-3-amino-thiophene-2-carboxylic acid methyl ester (1.512 g, 5.97 mmol) and N-tert-butoxycarbonyl-piperidin-4-one (1.189 g, 5.97 mmol) in 2 mL of dry THF is added dibutyltin dichloride (181 mg, 0.60 mmol), and the mixture is stirred for 10 min at room temperature under nitrogen. Then phenylsilane (810 μL, 6.57 mmol) is added, and the mixture is stirred for 24 h at room temperature. Additional 595 mg of N-tert-butoxycarbonyl-piperidin-4-one, 90 mg of dibutyltin dichloride and 405 μL of phenylsilane are added, and the mixture is stirred for another 24 h. Then the mixture is diluted with CH2Cl2, washed with brine, organic fraction is separated, dried over Na2SO4, and concentrated to give 5.142 g of crude 5-(3,3-dimethyl-but-1-ynyl)-3-(N-tert-butoxycarbonyl-piperidin-4-yl)amino-thiophene-2-carboxylic acid methyl ester.

後処理

  1. stirringthe mixture is stirred for 24 h at room temperature
  2. stirringthe mixture is stirred for another 24 h
  3. washwashed with brine, organic fraction
  4. customis separated
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-6d8bb779236149f3b7b61d1c7a0df07c
出典データセット
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08003685B2

反応ノート

読み込み中…

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