7,14-Dihydro-1,4,8,11-tetramethylpentacene-5,12-dione → 1,4,8,11-Tetramethylpentacene

HRID 983740ノート

反応式

HRID 983740 の反応式
[CH3:1][C:2]1[C:23]2[CH2:22][C:21]3[C:8](=[CH:9][C:10]4[CH2:11][C:12]5[C:17]([C:18](=O)[C:19]=4[CH:20]=3)=[C:16]([CH3:25])[CH:15]=[CH:14][C:13]=5[CH3:26])[C:7](=O)[C:6]=2[C:5]([CH3:28])=[CH:4][CH:3]=1>COCCOCCOC>[CH3:28][C:5]1[C:6]2[C:23](=[CH:22][C:21]3[C:8]([CH:7]=2)=[CH:9][C:10]2[C:19](=[CH:18][C:17]4[C:12]([CH:11]=2)=[C:13]([CH3:26])[CH:14]=[CH:15][C:16]=4[CH3:25])[CH:20]=3)[C:2]([CH3:1])=[CH:3][CH:4]=1

参加物

3

反応物 1

HCID 222694677,14-Dihydro-1,4,8,11-tetramethylpentacene-5,12-dione

生成物 1

HCID 179733711,4,8,11-Tetramethylpentacene

試薬・触媒・溶媒 1

HCID 8150Diglyme溶媒

反応条件

温度
60 °C

実験手順

A mixture of 1.0 grams of 7,14-dihydro-1,4,8,11-tetramethylpentacene-5,12-dione and 10 mL of 2-methoxyethyl ether was stirred and flushed with nitrogen for 15 minutes. To this was added 0.875 grams of sodium borohydride and stirring was continued at room temperature overnight. To the mixture was added 20 mL of 2-methoxyethyl ether and 0.75 grams of sodium borohydride and heating was continued overnight at 60° C. To the mixture was added 6.3 mL of methanol and 0.75 grams of sodium borohydride and stirring was continued for 6 hours at room temperature. To the mixture was added 15 mL of acetic acid and the mixture was stirred for one hour at room temperature. To the mixture was added 10 mL of concentrated hydrochloric acid and the mixture was heated to 60° C. for 1.5 hours. The solid was isolated by filtration and then washed with water and dried to give 1,4,8,11-tetramethylpentacene.

後処理

  1. customflushed with nitrogen for 15 minutes
  2. additionTo this was added 0.875 grams of sodium borohydride
  3. stirringstirring
  4. additionTo the mixture was added 20 mL of 2-methoxyethyl ether and 0.75 grams of sodium borohydride
  5. temperatureheating
  6. waitwas continued overnight at 60° C
  7. additionTo the mixture was added 6.3 mL of methanol and 0.75 grams of sodium borohydride
  8. stirringstirring
  9. waitwas continued for 6 hours at room temperature
  10. additionTo the mixture was added 15 mL of acetic acid
  11. stirringthe mixture was stirred for one hour at room temperature
  12. additionTo the mixture was added 10 mL of concentrated hydrochloric acid
  13. customThe solid was isolated by filtration
  14. washwashed with water
  15. customdried

出典と根拠

ORDレコード
ord-ed12aaf0edb04e6f90c47aae7f3e0eb6
出典データセット
uspto-grants-2005_03
特許番号
US06864396B2

反応ノート

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