Hydrochloric Acid → HCID 14390909, compound

HRID 2292275Notes

Reaction equation

HRID 2292275 reaction equation
C([N:9]1[CH2:15][CH2:14][N:13]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH2:12][CH2:11][N:10]1C(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1.Cl.O>C(O)CCC>[C:16]1([N:13]2[CH2:14][CH2:15][NH:9][NH:10][CH2:11][CH2:12]2)[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1

Participants

5

Procedure

A mixture of 1,2-dibenzoylhexahydro-5 phenyl-1H-1,2,5-triazepine (101.3 g), n-butanol (450 ml), 12N hydrochloric acid (915 ml) and water (915 ml) was mechanically stirred and heated under reflux on a steam bath overnight. Additional 12N hydrochloric acid (400 ml) and water (400 ml) were added and stirring and heating under reflux on a stea bath were continued for three days. n-Butanol (150 ml) was added and stirring and heating under reflux on a steam bath were continued for a further three days. After this time (7 days) the solid had dissolved. The mixture was extracted twice with ether and the aqueous solution was evaporated to smaller volume. Coevaporation with ethanol and concentrated hydrochloric acid caused crystallization of the titled product as the dihydrochloride salt; wt. 57.5 g (66%), mp=211°-218°.

Workup

  1. temperatureheated
  2. temperatureunder reflux on a steam bath overnight
  3. stirringstirring
  4. temperatureheating
  5. temperatureunder reflux on a stea bath
  6. stirringstirring
  7. temperatureheating
  8. temperatureunder reflux on a steam bath
  9. waitwere continued for a further three days
  10. dissolutionAfter this time (7 days) the solid had dissolved
  11. extractionThe mixture was extracted twice with ether
  12. customthe aqueous solution was evaporated to smaller volume
  13. customcrystallization of the titled product as the dihydrochloride salt

Sources & evidence

ORD record
ord-1e79a5f9da8e4a54b7b0f2dff64fc4ce
Source dataset
uspto-grants-1989_01
Patent number
US04801706

Reaction notes

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