Acetic Anhydride → HCID 21568796, compound

HRID 1579565Notes

Reaction equation

HRID 1579565 reaction equation
[CH3:1][CH:2]([C:10]1[CH:11]=[C:12]([OH:26])[C:13]2[CH:14]([CH3:25])[C:15]3[CH2:16][CH2:17][CH:18]([CH3:24])[CH2:19][C:20]=3[O:21][C:22]=2[CH:23]=1)[CH:3]([CH3:9])[CH2:4][CH2:5][CH2:6][CH2:7][CH3:8].[C:27](OC(=O)C)(=[O:29])[CH3:28]>N1C=CC=CC=1>[C:27]([O:26][C:12]1[C:13]2[CH:14]([CH3:25])[C:15]3[CH2:16][CH2:17][CH:18]([CH3:24])[CH2:19][C:20]=3[O:21][C:22]=2[CH:23]=[C:10]([CH:2]([CH3:1])[CH:3]([CH3:9])[CH2:4][CH2:5][CH2:6][CH2:7][CH3:8])[CH:11]=1)(=[O:29])[CH3:28]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 21568780HCID 21568780, compound

Product 1

HCID 21568796HCID 21568796, compound

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a solution of 1.2 g. of 3-(1,2-dimethylheptyl)-5,6,7,8-tetrahydro-1-hydroxy-6,9-dimethylxanthene in 20 ml. of dry pyridine is added 8.0 g. of acetic anhydride. The solution is stirred at 25° for 24 hours, then concentrated in vacuo. The residue is dissolved in water and extracted with hexane. The extract is washed with water until neutral, then dried and evaporated to give the title compound.

Workup

  1. concentrationconcentrated in vacuo
  2. dissolutionThe residue is dissolved in water
  3. extractionextracted with hexane
  4. washThe extract is washed with water until neutral,
  5. customthen dried
  6. customevaporated

Sources & evidence

ORD record
ord-9328dd6b0b3e40c5a0247135bb3a3835
Source dataset
uspto-grants-1976_01
Patent number
US03931232

Reaction notes

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