Abietic Acid → Dehydroabietic Acid

HRID 1744411

반응식

HRID 1744411 반응식
[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]

참가 물질

4

반응물 1

HCID 10569Abietic Acid

생성물 1

HCID 94391Dehydroabietic Acid수율 61.3%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 702Ethanol용매

반응 조건

온도
250 °C

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-f7fcbda1bfd24914a21fa340a3271e7e
출처 데이터셋
uspto-grants-2006_03
특허 번호
US07015343B2

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