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Sodium triacetoxyborohydride → 4-({4-[2-(1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}methyl)-3,4-dihydro-2H-chromene-7-carbonitrile

HRID 1519603
ノート
印刷プレビュー

反応式

HRID 1519603 の反応式
[CH:1]([CH:3]1[C:12]2[C:7](=[CH:8][C:9]([C:13]#[N:14])=[CH:10][CH:11]=2)[O:6][CH2:5][CH2:4]1)=O.[N:15]1([CH2:21][CH2:22][C:23]2[CH:32]=[CH:31][C:26]3[C:27](=[O:30])[O:28][CH2:29][C:25]=3[CH:24]=2)[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCl>[O:30]=[C:27]1[C:26]2[CH:31]=[CH:32][C:23]([CH2:22][CH2:21][N:15]3[CH2:20][CH2:19][N:18]([CH2:1][CH:3]4[C:12]5[C:7](=[CH:8][C:9]([C:13]#[N:14])=[CH:10][CH:11]=5)[O:6][CH2:5][CH2:4]4)[CH2:17][CH2:16]3)=[CH:24][C:25]=2[CH2:29][O:28]1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 5049666Sodium triacetoxyborohydrideHCID 595686715-[2-(piperazin-1-yl)ethyl]-2-benzofuran-1(3H)-oneHCID 772307034-Formyl-3,4-dihydro-2H-chromene-7-carbonitrile

生成物 1

HCID 866944804-({4-[2-(1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}methyl)-3,4-dihydro-2H-chromene-7-carbonitrile

試薬・触媒・溶媒 1

HCID 6344Dichloromethane
溶媒

実験手順

To a 12 mL reaction vial was added 4-formyl-3,4-dihydro-2H-chromene-7-carbonitrile (50 mg, 0.27 mmol), 5-[2-(piperazin-1-yl)ethyl]-2-benzofuran-1(3H)-one (66 mg, 0.27 mmol) and dichloromethane (3 mL). The solution was stirred at RT under N2 for 10 min. To above solution was added sodium tris(acetoxy) borohydride (224 mg, 1.1 mmol). The reaction was stirred at RT for 18 hours under N2, extracted with DCM, washed with brine and water. The organic phase was dried over MgSO4, filtered and purified by flash column chromatography. LC-MS (IE, m/z): 418.1 [M+1]+. 1H NMR (500 MHz, CDCl3, δ in ppm): 7.84 (1H, d, J=7.8 Hz), 7.38 (1H, d, J=7.8 Hz), 7.32 (2H, m), 7.11 (1H, dxd, J=8.0 Hz, J=1.6 Hz), 7.08 (1H, d, J=1.6 Hz), 5.60 (2H, s), 4.4 (2H, m), 3.0 (4H, m), 2.4-2.8 (10H, m), 2.0 (2H, m). (0.092 μM)

後処理

  1. customTo a 12 mL reaction
  2. stirringThe reaction was stirred at RT for 18 hours under N2
  3. extractionextracted with DCM
  4. washwashed with brine and water
  5. dry with materialThe organic phase was dried over MgSO4
  6. filtrationfiltered
  7. custompurified by flash column chromatography

出典と根拠

ORDレコード
ord-3cd156967d6d46e88a5fa1feebda31e8
出典データセット
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09073882B2

反応ノート

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