2-Bromo-5-(1,3-oxazol-2-yl)benzaldehyde → HCID 15895425、化合物

HRID 1637707ノート

反応式

HRID 1637707 の反応式
B([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[S:10]([N:13]([C:20]1[C:24]([CH3:25])=[C:23]([CH3:26])[O:22][N:21]=1)[CH2:14][O:15][CH2:16][CH2:17][O:18][CH3:19])(=[O:12])=[O:11])(O)O.Br[C:28]1[CH:35]=[CH:34][C:33]([C:36]2[O:37][CH:38]=[CH:39][N:40]=2)=[CH:32][C:29]=1[CH:30]=[O:31]>C1(C)C=CC=CC=1.C(O)C.C(=O)([O-])[O-].[Na+].[Na+].CCOC(C)=O.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>[CH3:25][C:24]1[C:20]([N:13]([CH2:14][O:15][CH2:16][CH2:17][O:18][CH3:19])[S:10]([C:5]2[C:4]([C:28]3[CH:35]=[CH:34][C:33]([C:36]4[O:37][CH:38]=[CH:39][N:40]=4)=[CH:32][C:29]=3[CH:30]=[O:31])=[CH:9][CH:8]=[CH:7][CH:6]=2)(=[O:12])=[O:11])=[N:21][O:22][C:23]=1[CH3:26]

参加物

8

反応物 2

HCID 107059332-Bromo-5-(1,3-oxazol-2-yl)benzaldehydeHCID 11728709B-[2-[[(4,5-dimethyl-3-isoxazolyl)[(2-methoxyethoxy)methyl]amino]sulfonyl]phenyl]Boronic acid

生成物 1

HCID 15895425HCID 15895425、化合物

試薬・触媒・溶媒 5

HCID 178418397HCID 178418397、化合物触媒HCID 702Ethanol溶媒HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒HCID 10340Sodium Carbonate溶媒

反応条件

温度
85 °C

実験手順

To the 2-borono-N-(4,5-dimethyl-3-isoxazolyl)-N-[(2-methoxyethoxy)methyl]benzenesulfonamide and 2-bromo-5-(2-oxazolyl)benzaldehyde (13.32 g, 58.14 mmol, prepared as described in Example 21 of European Patent Application No. 702,012) in 264 ml of toluene and 132 ml of 95% ethanol ("EtOH"), 106 ml 2M aqueous sodium carbonate and tetrakis(triphenylphosphine)palladium(0) (6.11 g, 5.29 mmol) were added and the reaction mixture heated under argon at 85° C. for 4 hrs, cooled and diluted with 250 ml of EtOAc. The organic layer was separated and washed with 100 ml H2O and 50 ml brine, dried and concentrated. The residue was chromatographed on silica gel using 1:1 hexane/EtOAc to afford the title product of this step (16.95 g, 62.7% for two steps) as a colorless gum.

後処理

  1. temperaturecooled
  2. customThe organic layer was separated
  3. washwashed with 100 ml H2O and 50 ml brine
  4. customdried
  5. concentrationconcentrated
  6. customThe residue was chromatographed on silica gel using 1:1 hexane/EtOAc

出典と根拠

ORDレコード
ord-4667c5e162a44d8eaa4b3b625088fc19
出典データセット
uspto-grants-2000_03
特許番号
US06043265

反応ノート

読み込み中…