Hydrochloric Acid → HCID 20536091, compound

HRID 1156399Notes

Reaction equation

HRID 1156399 reaction equation
[C:1]([C:3]1[C:4](=[O:26])[N:5]([CH2:24][CH3:25])[C:6](=[O:23])[C:7](=NC2C=CC(N(CC)CCO)=CC=2)[C:8]=1[CH3:9])#[N:2].Cl.[OH2:28]>>[C:1]([C:3]1[C:4](=[O:26])[N:5]([CH2:24][CH3:25])[C:6](=[O:23])[C:7](=[O:28])[C:8]=1[CH3:9])#[N:2]

Participants

4

Reactant 3

HCID 313Hydrochloric AcidHCID 962WaterHCID 53635534HCID 53635534, compound

Product 1

HCID 20536091HCID 20536091, compound

Procedure

1.02 g of 3-Cyano-1-ethyl-4-methyl-5-[4-(N-ethyl-N-hydroxyethylamino)phenylimino]-pyridine-2,6-dione (prepared as described in German Offenlegungsschrift No. 2808825) is stirred in 7 ml of water, and concentrated hydrochloric acid is slowly added until the blue dye had disappeared. A pale yellow solid precipitates, and is filtered off and recrystallised from ethyl acetate/petrol, yield 0.32 g, m.p. 159°-160° C. This is the compound of formula (4).

Workup

  1. customA pale yellow solid precipitates
  2. filtrationis filtered off
  3. customrecrystallised from ethyl acetate/petrol, yield 0.32 g, m.p. 159°-160° C

Sources & evidence

ORD record
ord-7c6220ac33b64113baa51ae73061ed26
Source dataset
uspto-grants-1982_06
Patent number
US04335245

Reaction notes

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