Ethanol → HCID 59255416、化合物

HRID 77876

反応式

HRID 77876 の反応式
I[C:2]1[C:3]([NH2:9])=[N:4][C:5]([NH2:8])=[CH:6][CH:7]=1.C(O)C.C(=O)([O-])[O-].[Na+].[Na+].CC1(C)C(C)(C)OB([C:27]2[CH:28]=[N:29][N:30]([C:32]([C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)([C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=3)[C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[CH:31]=2)O1>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(OCC)(=O)C.O>[C:32]([N:30]1[CH:31]=[C:27]([C:2]2[C:3]([NH2:9])=[N:4][C:5]([NH2:8])=[CH:6][CH:7]=2)[CH:28]=[N:29]1)([C:39]1[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=1)([C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1)[C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=1

参加物

9

反応物 4

HCID 702EthanolHCID 10340Sodium CarbonateHCID 4762183-Iodopyridine-2,6-diamineHCID 457896834-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1H-pyrazole

生成物 1

HCID 59255416HCID 59255416、化合物収率 76%

試薬・触媒・溶媒 4

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
95 °C

実験手順

To a solution of 3-iodo-pyridin-2,6-diamine (3.3 g, 7.74 mmol, purity: 70%) described in Manufacturing Example 13-1-1 in toluene (50 mL) were added ethanol (25 mL), 2 N aqueous sodium carbonate solution (12.5 mL), 4-(4,4,5,5-tetramethyl-(1,3,2)dioxaborolan-2-yl)-1-trityl-1H-pyrazole (3.3 g, 7.56 mmol) described in Manufacturing Example 32-1-2 and tetrakis(triphenylphosphine)palladium (0) (1.02 g, 0.88 mmol) under nitrogen atmosphere, which was stirred for 2.5 hours at 95° C. Water and ethyl acetate were added to the reaction mixture at room temperature, which was then filtered through a Celite pad, and the filtrate was partitioned into water and ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure. The residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=1:2 then 2:1 then 5:1) to obtain the title compound (2.4 g, 73%).

後処理

  1. filtrationwhich was then filtered through a Celite pad
  2. customthe filtrate was partitioned into water and ethyl acetate
  3. washThe organic layer was washed with water and saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under a reduced pressure
  6. customThe residue was purified by NH silica gel column chromatography (ethyl acetate

出典と根拠

ORDレコード
ord-894abc2d3baf4a5386879d0f226670ee
出典データセット
uspto-grants-2014_09
特許番号
US08841327B2

関連ノート

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