Hydrochloric Acid → HCID 65197583、化合物

HRID 555175ノート

反応式

HRID 555175 の反応式
[CH2:1]([Mg]Br)[CH3:2].[CH3:5][N:6]1[CH:10]=[CH:9][C:8]([C:11]#[N:12])=[N:7]1.B(F)(F)F.CCOCC.Cl.[OH-].[Na+]>CCOCC>[CH3:5][N:6]1[CH:10]=[CH:9][C:8]([C:11]2([NH2:12])[CH2:2][CH2:1]2)=[N:7]1

参加物

7

反応物 5

HCID 313Hydrochloric AcidHCID 8000Boron trifluoride etherateHCID 14798Sodium HydroxideHCID 127475101-Methyl-1H-pyrazole-3-carbonitrileHCID 178418443HCID 178418443、化合物

生成物 1

HCID 65197583HCID 65197583、化合物

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒2 回

実験手順

Ethyl magnesium bromide (2.5 mol, 1 M in ether) was added at −78° C. to a solution of a 1-methyl-1H-pyrazole-3-carbonitrile (0.5 g, 1 mmol) and Ti(Oi-Pr)4 (1.1 mmol) in Et2O (5 mL). The yellow solution was stirred for 10 min. After the solution was warmed to ambient temperature (1 h), BF3.OEt2 (2 mmol) was added. After the mixture was stirred for 1 h, 1 N HCl and ether were added. NaOH (10%) was added to the resulting two clear phases and the mixture was extracted with ether. The combined ether layers were dried (Na2SO4), filtered, and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (Et2O). 1H NMR (400 MHz, CDCl3): δ 0.94-1.05 (m, 4H), 2.32 (s, 2H), 3.83 (s, 3H), 5.92 (d, 1H), 7.23-7.24 (d, 1H). LCMS: (ES+) m/z observed 137.7.

後処理

  1. additionwas added
  2. stirringAfter the mixture was stirred for 1 h
  3. extractionthe mixture was extracted with ether
  4. dry with materialThe combined ether layers were dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by flash chromatography on silica gel (Et2O)

出典と根拠

ORDレコード
ord-7ef8ddac3b5d4577b383fc4d3620b02c
出典データセット
uspto-grants-2011_11
特許番号
US08048887B2

反応ノート

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