Acetonitrile → 5-(2-Formylphenyl)picolinonitrile

HRID 1620832ノート

反応式

HRID 1620832 の反応式
CC1(C)C(C)(C)OB([C:9]2[CH:10]=[CH:11][C:12]([C:15]#[N:16])=[N:13][CH:14]=2)O1.Br[C:19]1[CH:26]=[CH:25][CH:24]=[CH:23][C:20]=1[CH:21]=[O:22].C(#N)C.C(=O)([O-])[O-].[Na+].[Na+]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.C(OCC)(=O)C>[CH:21]([C:20]1[CH:23]=[CH:24][CH:25]=[CH:26][C:19]=1[C:9]1[CH:10]=[CH:11][C:12]([C:15]#[N:16])=[N:13][CH:14]=1)=[O:22]

参加物

7

反応物 4

HCID 6342AcetonitrileHCID 10340Sodium CarbonateHCID 811292-BromobenzaldehydeHCID 164141882-Cyanopyridine-5-boronic acid pinacol ester

生成物 1

HCID 866210895-(2-Formylphenyl)picolinonitrile収率 72%

試薬・触媒・溶媒 2

HCID 178418476HCID 178418476、化合物触媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
100 °C

実験手順

In a microwave vial, 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine-2-carbonitrile (279 mg, 1.51 mmol), 2-bromo-benzaldehyde (230 mg, 1 mmol) and 2 ml of actonitrile were mixed. Then, 2 ml of 1N aqueous sodium carbonate was added, followed by 5 mole percent of dichlorobis(triphenylphosphine)-palladium(II). The reaction vessel was sealed and heated at 100° C. for 10 minutes with microwave irradiation. After cooling, 50 ml of ethyl acetate was added, the organic layer was separated, washed with water and dried over sodium sulfate. The organic solvent was evaporated to give crude product which was purified by ISCO to give 150 mg of 5-(2-formyl-phenyl)-pyridine-2-carbonitrile, yield 72%.

後処理

  1. customThe reaction vessel was sealed
  2. temperatureAfter cooling
  3. customthe organic layer was separated
  4. washwashed with water
  5. dry with materialdried over sodium sulfate
  6. customThe organic solvent was evaporated
  7. customto give crude product which
  8. customwas purified by ISCO

出典と根拠

ORDレコード
ord-7ef8e3de93414879a1eacac8240eb56e
出典データセット
uspto-grants-2014_07
特許番号
US08772482B2

反応ノート

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