4-Chloro-2-toluidine → HCID 22466684, compound

HRID 1935137Notes

Reaction equation

HRID 1935137 reaction equation
Cl[C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:14][CH3:15])=[C:9]([O:12][CH3:13])[CH:10]=2)[N:5]=[CH:4][C:3]=1[C:16]#[N:17].[Cl:18][C:19]1[CH:25]=[CH:24][C:22]([NH2:23])=[C:21]([CH3:26])[CH:20]=1.Cl.N1C=CC=CC=1.C(OCCO)C>>[Cl:18][C:19]1[CH:25]=[CH:24][C:22]([NH:23][C:2]2[C:11]3[C:6](=[CH:7][C:8]([O:14][CH3:15])=[C:9]([O:12][CH3:13])[CH:10]=3)[N:5]=[CH:4][C:3]=2[C:16]#[N:17])=[C:21]([CH3:26])[CH:20]=1

Participants

5

Reactant 4

HCID 72514-Chloro-2-toluidine2×HCID 8076Glycol monoethyl etherHCID 10176127Pyridinium chlorideHCID 105866764-Chloro-6,7-dimethoxy-quinoline-3-carbonitrile

Product 1

HCID 22466684HCID 22466684, compoundYield 71%

Conditions

Temperature
139 °C

Procedure

A mixture of 0.248 g (1 mmol) of 4-chloro-6,7-dimethoxy-quinoline-3-carbonitrile, 0.156 g (1.1 mmol) of 4-chloro-2-methylaniline, 0.116 g (1 mmol) pyridine hydrochloride and 12 ml of 2-ethoxyethanol was heated in a 138-140° C. oil bath for 24 hours; progress of the reaction was monitored by TLC. After 24 hours an additional 0.156 g of of 4-chloro-2-methylaniline was added and the heating continued for 24 hours. When TLC indicated the disappearance of starting material, the reaction was cooled and concentrated in vacuo to a thick oil. To this oil was added 50 ml of water followed by 5 ml of 1M NaHCO3, approximately pH 8. The gummy solid was dissolved in chloroform and passed through a pad of hydrous magnesium silicate. The liquid was concentrated in vacuo and the residue triturated 5 times with hexane. The resulting precipitate was collected, washed with hexane, and dried in vacuo at 65° C. to give 0.250 g (71%) of the desired product as brown crystals. MP 227-229° C.;: mass spectrum (electrospray, m/e,): 353.8(M+H)+.

Workup

  1. temperaturethe reaction was cooled
  2. concentrationconcentrated in vacuo to a thick oil
  3. additionTo this oil was added 50 ml of water
  4. dissolutionThe gummy solid was dissolved in chloroform
  5. concentrationThe liquid was concentrated in vacuo
  6. customthe residue triturated 5 times with hexane
  7. customThe resulting precipitate was collected
  8. washwashed with hexane
  9. customdried in vacuo at 65° C.

Sources & evidence

ORD record
ord-66fecbad3fd843c8a713cf82b32e8329
Source dataset
uspto-grants-2002_05
Patent number
US06384051B1

Reaction notes

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