Potassium Carbonate → 9-[(3-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

HRID 567271

反応式

HRID 567271 の反応式
[C:1]([C:5]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:6]=1[C:7]1[C:8](=[O:18])[CH2:9][CH2:10][CH2:11][C:12]=1[NH:13]2)([O:3][CH3:4])=[O:2].[Cl:19][C:20]1[CH:21]=[C:22]([CH:25]=[CH:26][CH:27]=1)[CH2:23]Br.C(=O)([O-])[O-].[K+].[K+]>C(OCC)(=O)C.[I-].[Na+]>[Cl:19][C:20]1[CH:21]=[C:22]([CH2:23][N:13]2[C:12]3[CH2:11][CH2:10][CH2:9][C:8](=[O:18])[C:7]=3[C:6]3[C:14]2=[CH:15][CH:16]=[CH:17][C:5]=3[C:1]([O:3][CH3:4])=[O:2])[CH:25]=[CH:26][CH:27]=1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 698381-(Bromomethyl)-3-chlorobenzeneHCID 11368514methyl 4-oxo-2,3,4,9-tetrahydro-1H-carbazole-5-carboxylate

生成物 1

HCID 227385809-[(3-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one収率 67.4%

試薬・触媒・溶媒 2

HCID 5238Sodium Iodide触媒HCID 8857Ethyl Acetate溶媒

実験手順

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (527.0 mg, 2.17 mM), 3-chlorobenzyl bromide (802.2 mg, 3.90 mM), a catalytic amount of sodium iodide (ca. 1 mg), and potassium carbonate (500.0 mg, 3.62 mM) was stirred at room temperature for 150 hours. The mixture was diluted with ethyl acetate, washed five times with H2O, once with saturated brine, dried over anhydrous magnesium sulfate, filtered, and concentrated. The residue was purified by column chromatography on silica gel (elution with gradient methylene chloride/ethyl acetate) to afford 537.1 mg (67%) of the 9-[(3-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as a yellow foam. 1H NMR (CDCl3) δ 7.5-7.2 (m, 5H), 7.1 (s, 1H), 6.85 (m, 1H), 5.35 (s, 2H), 4.05 (s, 3H), 2.9 (t, 2H, J=6 Hz), 2.65 (t, 2H, J=6 Hz), and 2.3 (m, 2H). IR (CHCl3, cm−1) 3050, 2950, 1725, 1654, 1464, 1444, 1432, 1288 and 1120. MS (ES) m/e 366, 368, 370.

後処理

  1. washwashed five times with H2O
  2. dry with materialonce with saturated brine, dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by column chromatography on silica gel (elution with gradient methylene chloride/ethyl acetate)

出典と根拠

ORDレコード
ord-5fe1a30ce0d548b9a8f2f11959dd178a
出典データセット
uspto-grants-2001_01
特許番号
US06177440B1

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