Acetic Acid → HCID 14204115, compound

HRID 1789550Notes

Reaction equation

HRID 1789550 reaction equation
[OH:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH:7]1[CH2:14][CH2:13][CH:12]2[CH:8]1[CH2:9][C:10](=[O:15])[CH2:11]2.O.[C:17](O)(=[O:19])[CH3:18]>>[C:17]([O:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH:7]1[CH2:14][CH2:13][CH:12]2[CH:8]1[CH2:9][C:10](=[O:15])[CH2:11]2)(=[O:19])[CH3:18]

Participants

4

Reactant 3

HCID 176Acetic AcidHCID 962WaterHCID 14204106HCID 14204106, compound2×

Product 1

HCID 14204115HCID 14204115, compound

Conditions

Temperature
75 °C

Procedure

The starting material 2-(5-hydroxypent-1-yl)bicyclo[3.3.0]octan-7-one {hexahydro-4-(5-hydroxypentyl)-2(1H)-pentalenone} (0.8 g, 3.8 mmoles) is diluted with glacial acetic acid (7 ml). The reaction is stirred and heated in a 75° C. oil bath for 24 hours, after which time water (20 ml) is added and the reaction partitioned between ether. The ether layer is separated and the aqueous phase extracted again with ether (2×50 ml). The extracts and the organic phase are combined and neutralized with saturated sodium bicarbonate. The organic phase is dried over anhydrous magnesium sulfate and the remained solvent removed under vacuum leaving a pale yellow oil. The product is kugelrohred under reduced pressure leaving a clear, colorless oil (0.5 g, 2.0 mmoles).

Workup

  1. customthe reaction partitioned between ether
  2. customThe ether layer is separated
  3. extractionthe aqueous phase extracted again with ether (2×50 ml)
  4. dry with materialThe organic phase is dried over anhydrous magnesium sulfate
  5. customthe remained solvent removed under vacuum
  6. customleaving a pale yellow oil

Sources & evidence

ORD record
ord-a562188c5ed14659b721a63cea1485be
Source dataset
uspto-grants-1987_08
Patent number
US04689345

Reaction notes

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