Hydrochloric Acid → AY 22093

HRID 436086Notes

Reaction equation

HRID 436086 reaction equation
[OH:1][CH:2]([CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])[CH2:3][CH2:4][C@@H:5]1[C@@H:9]([CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16]([O:18]CC)=[O:17])[C:8](=[O:21])[CH2:7][CH2:6]1.[OH-].[K+].Cl.[Cl-].[Na+]>CO>[OH:1][CH:2]([CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])[CH2:3][CH2:4][C@@H:5]1[C@@H:9]([CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16]([OH:18])=[O:17])[C:8](=[O:21])[CH2:7][CH2:6]1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 5234Sodium ChlorideHCID 14797Potassium HydroxideHCID 1859466215-Hydroxy-9-oxoprostanoic acid, ethyl ester

Product 1

HCID 193037AY 22093

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A suspension of 15 g. of 15-hydroxy-9-oxoprostanoic acid, ethyl ester in 230 ml. of aqueous methanol (1:1) containing 6.45 g. of potassium hydroxide is stirred at 50° C. for 1 hour and then at room temperature for 18 hours. The resulting solution is acidified with 1N hydrochloric acid, saturated with sodium chloride, and extracted several times with diethyl ether. The combined ether extracts are washed twice with saturated sodium chloride solution, dried with anhydrous magnesium sulfate, and taken to dryness to give 13.1 g. (94%) of product as an oil. There is essentially no uv absorption; [α]D25 0° (1.0% in CHCl3); λmaxKBr 2.80-3.70 (broad), 5.75, 5.87 μ; nmr 2H singlet δ 6.65 (hydroxyl and carboxyl protons), 1H broad singlet 3.63 (carbinolic proton), and 3H distorted triplet 0.93 (terminal methyl); mass spectrum: m/e 340.

Workup

  1. additionA suspension of 15 g
  2. extractionextracted several times with diethyl ether
  3. washThe combined ether extracts are washed twice with saturated sodium chloride solution
  4. dry with materialdried with anhydrous magnesium sulfate
  5. customto give 13.1 g
  6. customno uv absorption

Sources & evidence

ORD record
ord-a69baec580a943969f493eeffc2859e6
Source dataset
uspto-grants-1977_02
Patent number
US04007210

Reaction notes

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