4-Hydroxybenzoic Acid → 4-Undecanoyloxybenzoic acid

HRID 247789

反応式

HRID 247789 の反応式
[OH:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[C:11](Cl)(=[O:22])[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21].CN(C1C=CC=CN=1)C.Cl>ClCCl.C(N(CC)CC)C>[C:11]([O:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1)(=[O:22])[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21]

参加物

7

反応物 4

HCID 1354-Hydroxybenzoic AcidHCID 313Hydrochloric AcidHCID 218852-DimethylaminopyridineHCID 87287Undecanoyl chloride

生成物 1

HCID 154568744-Undecanoyloxybenzoic acid収率 75.1%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8471Triethylamine溶媒

実験手順

To a solution of p-hydroxybenzoic acid (3 g) and triethylamine (2.4 g) in dichloromethane (30 ml) were added undecanoyl chloride (4.5 g) and dimethylaminopyridine (0.2 g). The mixture was stirred at room temperature for about 20 hours. After dilute aqueous hydrochloric acid solution was added, an organic layer was separated by a funnel. After the solution was distilled to remove the solvent, the residue was washed with n-hexane and dried to obtain the titled compound (about 5 g).

後処理

  1. customan organic layer was separated by a funnel
  2. distillationAfter the solution was distilled
  3. customto remove the solvent
  4. washthe residue was washed with n-hexane
  5. customdried

出典と根拠

ORDレコード
ord-95f5ab90248642f89e9fa8c60e1b1a59
出典データセット
uspto-grants-1993_05
特許番号
US05207947

関連ノート

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