Abietic Acid → Dehydroabietic Acid

HRID 1744411

反応式

HRID 1744411 の反応式
[CH3:1][CH:2]([C:4]1[CH2:13][CH2:12][C@H:11]2[C:6](=[CH:7][CH2:8][C@H:9]3[C@@:17]([C:19]([OH:21])=[O:20])([CH3:18])[CH2:16][CH2:15][CH2:14][C@@:10]32[CH3:22])[CH:5]=1)[CH3:3]>[Pd].C(O)C>[CH3:3][CH:2]([C:4]1[CH:13]=[CH:12][C:11]2[C@@:10]3([CH3:22])[CH2:14][CH2:15][CH2:16][C@:17]([C:19]([OH:21])=[O:20])([CH3:18])[C@@H:9]3[CH2:8][CH2:7][C:6]=2[CH:5]=1)[CH3:1]

参加物

4

反応物 1

HCID 10569Abietic Acid

生成物 1

HCID 94391Dehydroabietic Acid収率 61.3%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 702Ethanol溶媒

反応条件

温度
250 °C

実験手順

115 g of abietic acid was put into a 1000 ml three-neck bottle , and then 2.3 g of 5% palladium/carbon catalyst was added in. The mixture was stirred at 250° C. (oil bath) for 2 hours, after slightly cooled down, 200 ml of 95% ethanol was added. The mixture was refluxed until completely dissolved, filtered when it was warm, allowed to stand still and to be crystallized to give 70 g of dehydroabietic acid after filtered and dried.

後処理

  1. temperatureafter slightly cooled down
  2. temperatureThe mixture was refluxed
  3. dissolutionuntil completely dissolved
  4. filtrationfiltered when it
  5. temperaturewas warm
  6. customto be crystallized

出典と根拠

ORDレコード
ord-f7fcbda1bfd24914a21fa340a3271e7e
出典データセット
uspto-grants-2006_03
特許番号
US07015343B2

関連ノート

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