Potassium Hydroxide → 2-Hydroxybenzanthrone

HRID 259184

반응식

HRID 259184 반응식
[C:1](#N)[C:2]([CH3:4])=[CH2:3].C1(CC(O)(C)C#N)[C:19]2[C:18](=[O:20])[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[C:11](=[O:21])[C:10]=2[CH:9]=[CH:8][CH:7]=1.[OH-].[K+]>CO.O>[OH:21][C:11]1[CH:12]=[C:13]2[C:3]3[C:17](=[CH:16][CH:15]=[CH:14]2)[C:18](=[O:20])[C:19]2[C:4](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:2]=3[CH:1]=1

참가 물질

6

반응물 3

HCID 14797Potassium HydroxideHCID 31368MethacrylonitrileHCID 214233833-(1-Anthraquinonyl)-2-hydroxy-2-methylpropionitrile

생성물 1

HCID 112420342-Hydroxybenzanthrone

시약·촉매·용매 2

HCID 887Methanol용매2회HCID 962Water용매2회

실험 절차

There was obtained a distillate containing 35.7 g of methacrylonitrile, besides methanol and water. The distillation residue was then mushed or slurried with water, filtered, washed with water to neutrality, and finally well squeezed. The solid product thus obtained, consisting of 3-(1-anthraquinonyl)-2-hydroxy-2-methylpropionitrile: ##STR9## is suspended, still humid, in a solution of 500 cc of methanol containing 25 g of potassium hydroxide. This suspension was then reflux-heated for 1.5 hours and the red tinged solution thus obtained was freed of the insoluble impurities by filtering. It was then diluted with water up to 1.5 liters and then acidified with concentrated hydrochloric acid. Thereby was formed a yellow tinged precipitate which was filtered, washed with water to neutrality, and finally dried at 100° C. under vacuum until attaining a constant weight. In this way there were obtained 44.8 g of 2-hydroxybenzanthrone in the form of a yellow powder.

후처리

  1. customThere was obtained
  2. filtrationfiltered
  3. washwashed with water to neutrality
  4. customThe solid product thus obtained
  5. temperatureThis suspension was then reflux-heated for 1.5 hours
  6. customthe red tinged solution thus obtained
  7. filtrationby filtering
  8. additionIt was then diluted with water up to 1.5 liters
  9. customThereby was formed a yellow tinged precipitate which
  10. filtrationwas filtered
  11. washwashed with water to neutrality
  12. customfinally dried at 100° C. under vacuum

출처 및 근거

ORD 기록
ord-4b26fd645a834a09a87becb91a89dcd4
출처 데이터셋
uspto-grants-1977_07
특허 번호
US04036859

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