Cesium carbonate → 3-[4-(2-Morpholin-4-yl-ethoxy)-phenylamino]-phthalic acid dimethyl ester

HRID 448394

反応式

HRID 448394 の反応式
[N:1]1([CH2:7][CH2:8][O:9][C:10]2[CH:15]=[CH:14][C:13]([NH2:16])=[CH:12][CH:11]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.[CH3:17][O:18][C:19](=[O:31])[C:20]1[C:21](=[C:26](I)[CH:27]=[CH:28][CH:29]=1)[C:22]([O:24][CH3:25])=[O:23].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1(C)C=CC=CC=1.C(Cl)Cl.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH3:25][O:24][C:22](=[O:23])[C:21]1[C:20](=[C:29]([NH:16][C:13]2[CH:14]=[CH:15][C:10]([O:9][CH2:8][CH2:7][N:1]3[CH2:6][CH2:5][O:4][CH2:3][CH2:2]3)=[CH:11][CH:12]=2)[CH:28]=[CH:27][CH:26]=1)[C:19]([O:18][CH3:17])=[O:31]

参加物

8

反応物 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 2326127Dimethyl 3-iodophthalateHCID 64847114-(2-Morpholinoethoxy)aniline

生成物 1

HCID 583073333-[4-(2-Morpholin-4-yl-ethoxy)-phenylamino]-phthalic acid dimethyl ester収率 70%

試薬・触媒・溶媒 3

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 1140Toluene溶媒HCID 6344Dichloromethane溶媒

実験手順

A mixture of 4-(2-morpholin-4-yl-ethoxy)-phenylamine (1.4 g, 6.2 mmol), 3-iodophthalic acid dimethyl ester (2.0 g, 6.2 mmol), Pd2(dba)3 (0.26 g, 0.28 mmol), rac-BINAP (0.12 g, 0.19 mmol), and cesium carbonate (2.8 g, 8.6 mmol), in 12 mL toluene was heated to reflux under nitrogen for 16 hours. The reaction mixture was cooled, diluted with CH2Cl2 (20 mL), and filtered through Celite, and the filter was washed with additional CH2Cl2 (60 mL). The filtrate was evaporated in vacuo, and the residue was purified by ISCO silica gel flash chromatography using a methylene chloride-methanol gradient, eluting 1.8 g of the product at 95:5 methylene chloride-methanol, in 70% yield, as a pale yellow solid; 1H NMR (CDCl3) δ 3.00-3.51 (m, 6H), 3.87 (s, 3H), 3.88 (s, 3H), 4.08-4.34 (m, 4H), 4.52-4.62 (m, 2H), 6.89 (d, J=8.7 Hz, 2H), 6.99 (d, J=7.1, 1H), 7.09-7.12 (m, 3H), 7.23-7.28 (m, 1H), 8.08 (s, 1H).

後処理

  1. temperatureto reflux under nitrogen for 16 hours
  2. temperatureThe reaction mixture was cooled
  3. filtrationfiltered through Celite
  4. washthe filter was washed with additional CH2Cl2 (60 mL)
  5. customThe filtrate was evaporated in vacuo
  6. customthe residue was purified by ISCO silica gel flash chromatography
  7. washeluting 1.8 g of the product at 95:5 methylene chloride-methanol

出典と根拠

ORDレコード
ord-41db7f6487b5439ba7499b8d7a4761a8
出典データセット
uspto-grants-2013_07
特許番号
US08481568B2

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