反応式
CC.[CH2:3]=[CH:4][CH2:5]/[CH:6]=[CH:7]\[CH2:8]/[CH:9]=[CH:10]\[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][C:18]1[CH:23]=[C:22]([OH:24])[CH:21]=[CH:20][CH:19]=1.[CH:25]([O-])([O-])[O:26]CC>>[CH2:17]([C:18]1[CH:23]=[C:22]([OH:24])[C:21](=[CH:20][CH:19]=1)[CH:25]=[O:26])[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH3:3]参加物
4
実験手順
(15:0)-Cardanol (10.2 g) is added to an equivalent proportion of ethyl magnesium bromide in dry ethereal solution to form the phenoxy magnesium bromide, completion of which is observed when evolution of ethane ceases. Ethyl orthoformate (10 cm3) is added and the ether removed by distillation so that the temperature rises to 100° C. After refluxing for three hours, the mixture is decomposed with dilute hydrochloric acid and warmed to effect the hydrolysis of the intermediate acetal formed. Etheral extraction and recovery gives a mixture of some unchanged (15:0)-cardanol and the formylated product, 4-pentadecylsalicylaldehyde which is separated by chromatography.
後処理
- customthe ether removed by distillation so that the temperature
- customrises to 100° C
- temperatureAfter refluxing for three hours
- temperaturewarmed
- customthe hydrolysis of the intermediate acetal
- customformed
- extractionEtheral extraction and recovery
- customgives
- customthe formylated product, 4-pentadecylsalicylaldehyde which is separated by chromatography
出典と根拠
- ORDレコード
- ord-6be94184385c40ce923d9b2d1a9b99b1
- 出典データセット
- uspto-grants-1987_09
- 特許番号
- US04697038
関連ノート
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