Methane → 3,4,5-Trimethoxyhydrocinnamic acid

HRID 725290

反応式

HRID 725290 の反応式
[C:1](=[O:4])([O-])[O-:2].[K+].[K+].[CH3:7][O:8][C:9]1[CH:10]=[C:11]([C:19](=C)[C:20](O)=O)[CH:12]=[C:13]([O:17][CH3:18])[C:14]=1[O:15][CH3:16].C.[H][H]>[Pd].O>[CH3:18][O:17][C:13]1[CH:12]=[C:11]([CH2:19][CH2:20][C:1]([OH:2])=[O:4])[CH:10]=[C:9]([O:8][CH3:7])[C:14]=1[O:15][CH3:16]

参加物

7

反応物 4

HCID 297MethaneHCID 11430Potassium CarbonateHCID 208491922-(3,4,5-Trimethoxyphenyl)prop-2-enoic acidHCID 178418361HCID 178418361、化合物

生成物 1

HCID 648603,4,5-Trimethoxyhydrocinnamic acid収率 167.5%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 962Water溶媒

実験手順

6.8 g of potassium carbonate were added to a solution of 21.44 g of 3,4,5-trimethoxyphenylpropenoic acid and 45 ml of water and the mixture was hydrogenated for one hour under a pressure of 1200-1300 mbar in the presence of 1.8 g of activated charcoal with 10% of palladium during which 2.1 liters of hydrogen were absorbed. Filtration was carried out, followed by washing with water and acidifying with 50 ml of hydrochloric acid (2N). The product was separated off, washed with water and dried under reduced pressure at ambient temperature to obtain 19.8 g of the expected product melting at 102°-103° C.

後処理

  1. customwere absorbed
  2. filtrationFiltration
  3. washby washing with water and acidifying with 50 ml of hydrochloric acid (2N)
  4. customThe product was separated off
  5. washwashed with water
  6. customdried under reduced pressure at ambient temperature

出典と根拠

ORDレコード
ord-451863dc68f5423fa2f463b5bd9d4b08
出典データセット
uspto-grants-1998_01
特許番号
US05705704

関連ノート

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