Ethanol → HCID 54351148, compound

HRID 2083102Notes

Reaction equation

HRID 2083102 reaction equation
[CH3:1][CH:2]([CH2:8][CH2:9][C:10]([OH:12])=[O:11])[CH2:3][CH2:4][C:5]([OH:7])=[O:6].S(=O)(=O)(O)O.[CH2:18](O)[CH3:19]>>[CH2:18]([O:11][C:10](=[O:12])[CH2:9][CH2:8][CH:2]([CH3:1])[CH2:3][CH2:4][C:5]([OH:7])=[O:6])[CH3:19]

Participants

4

Reactant 3

HCID 702EthanolHCID 1118Sulfuric AcidHCID 962684-Methylpimelic acid

Product 1

HCID 54351148HCID 54351148, compound

Procedure

145 g of crude 4-methylpimelic acid, 68 ml of absolute ethanol and 12 ml of concentrated sulfuric acid were refluxed for 5 hours. The mixture was poured into ice and extracted several times. The combined ether solutions were extracted with saturated NaHCO3 until the development of CO2 was finished. The aqueous extracts were covered with a layer of ether and adjusted while stirring to pH 2 to 3 with diluted sulfuric acid. The ether layer was separated and the aqueous phase was saturated with (NH4)2SO4 and extracted three times with ether.

Workup

  1. additionThe mixture was poured into ice
  2. extractionextracted several times
  3. extractionThe combined ether solutions were extracted with saturated NaHCO3 until the development of CO2
  4. customThe ether layer was separated
  5. extractionextracted three times with ether

Sources & evidence

ORD record
ord-9cac983c9588487487334fed5210d721
Source dataset
uspto-grants-1978_04
Patent number
US04083990

Reaction notes

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