Hydrochloric Acid → HCID 15588873, compound

HRID 1262688Notes

Reaction equation

HRID 1262688 reaction equation
[CH2:1]1[CH:8]2[N:4]([C:5](=[O:9])[CH2:6][CH2:7]2)[C:3](=[O:10])[CH2:2]1.Cl.[Cl:12][C:13]1[CH:14]=[C:15]([CH:18]=[CH:19][CH:20]=1)[CH2:16][OH:17]>C(OCC)C>[Cl:12][C:13]1[CH:14]=[C:15]([CH:18]=[CH:19][CH:20]=1)[CH2:16][O:17][C:5](=[O:9])[CH2:6][CH2:7][CH:8]1[CH2:1][CH2:2][C:3](=[O:10])[NH:4]1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 701173-Chlorobenzyl alcoholHCID 71893Rolziracetam

Product 1

HCID 15588873HCID 15588873, compound

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Conditions

Temperature
100 °C

Procedure

Two hundred and eighty eight milligrams of dihydro 1H-pyrrolizine-3,5(2H, 6H) dione is dissolved in 600 mg of m-chlorobenzyl alcohol and 0.2 ml of concentrated hydrochloric acid is added. The solution is heated at 100° C. for 40 hours. The mixture is cooled and is dissolved in 50 ml of anhydrous diethylether. The filtrate is cooled to induce crystallization and the resulting crystals are isolated by filtration. Recrystallization from toluene-petroleum ether yields 5-oxo-2-pyrrolidinepropanoic acid m-chlorobenzyl ester with a melting point of 90°-91° C.

Workup

  1. temperatureThe mixture is cooled
  2. temperatureThe filtrate is cooled
  3. customcrystallization
  4. customthe resulting crystals are isolated by filtration
  5. customRecrystallization from toluene-petroleum ether

Sources & evidence

ORD record
ord-4f320630b2774e6bbbe6b48104a4decf
Source dataset
uspto-grants-1984_06
Patent number
US04452990

Reaction notes

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