Tetrafluoroboric acid → HCID 12398449、化合物

HRID 616877

反応式

HRID 616877 の反応式
N[C:2]1[C:9]([O:10][CH3:11])=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][C:3]=1[O:12][CH3:13].[H+].[B-](F)(F)(F)[F:16].N([O-])=O.[Na+]>O>[CH3:13][O:12][C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([O:10][CH3:11])[C:2]=1[F:16])[CH:6]=[O:7]

参加物

5

反応物 3

HCID 28118Tetrafluoroboric acidHCID 200429634-Amino-3,5-dimethoxybenzaldehydeHCID 23668193Sodium Nitrite

生成物 1

HCID 12398449HCID 12398449、化合物

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

A solution of 1.4 g. of 4-amino-3,5-dimethoxybenzaldehyde in 20 ml. of 50% hydrogen tetrafluoroborate was diazotized at 0° C. with a solution of 0.59 g. of sodium nitrite in about 2 ml. of water. After irradiation with a low pressure mercury lamp (Hanau NK 6620) for 6 hours at room temperature, the solution was extracted with ether, the ether extracts dried over magnesium sulfate and concentrated. After recrystallization from heptane, the residue produced 3,5-dimethoxy-4-fluoro-benzaldehyde of melting point 97°-98° C.

後処理

  1. customwas diazotized at 0° C. with a solution of 0.59 g
  2. customAfter irradiation with a low pressure mercury lamp (Hanau NK 6620) for 6 hours at room temperature
  3. extractionthe solution was extracted with ether
  4. dry with materialthe ether extracts dried over magnesium sulfate
  5. concentrationconcentrated
  6. customAfter recrystallization from heptane

出典と根拠

ORDレコード
ord-3e11685ebb1d4773be60d8b48510e0fe
出典データセット
uspto-grants-1978_02
特許番号
US04076810

関連ノート

読み込み中…