Ethanol → HCID 178527812, compound

HRID 2305471Notes

Reaction equation

HRID 2305471 reaction equation
CC(C)CN[C:5]1[C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[N:8]=[CH:7][C:6]=1[NH2:15].[C:17](=[S:19])=[S:18].C(O)C>[OH-].[Na+]>[S:18]1[C:5]2[C:14]3[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=3[N:8]=[CH:7][C:6]=2[N:15]=[C:17]1[SH:19]

Participants

5

Reactant 3

HCID 702EthanolHCID 6348Carbon DisulfideHCID 11298872N4-(2-methylpropyl)quinoline-3,4-diamine

Product 1

HCID 178527812HCID 178527812, compound

Reagents, catalysts & solvents 1

HCID 14798Sodium HydroxideSolvent

Procedure

N4-(2-methylpropyl)quinoline-3,4-diamine (5.4 g, 25 mmol) was combined with carbon disulfide (9 mL, 150 mmol) and ethanol (55 mL) and then heated at reflux on a steam bath for 2 hours. The resulting precipitate was isolated by filtration, washed with ethanol and then air dried to provide 4.4 g of crude product. A portion (1 g) was dissolved in hot dilute sodium hydroxide and then reprecipitated with acetic acid. The precipitate was isolated by filtration while still hot, washed with hexane and then air dried to provide thiazolo[4,5-c]quinoline-2-thiol as a solid, m.p. 282-284° C. Analysis: Calculated for C10H6N2S2: %C, 55.02; %H, 2.77; %N, 12.83: Found: %C, 54.96; %H, 2.69; %N, 12.74.

Workup

  1. temperatureheated
  2. temperatureat reflux on a steam bath for 2 hours
  3. customThe resulting precipitate was isolated by filtration
  4. washwashed with ethanol
  5. customair dried
  6. customto provide 4.4 g of crude product
  7. customreprecipitated with acetic acid
  8. customThe precipitate was isolated by filtration while still hot,
  9. washwashed with hexane
  10. customair dried

Sources & evidence

ORD record
ord-9788b5d724cd41af9411ce7c3fb62c98
Source dataset
uspto-grants-2002_08
Patent number
US06440992B1

Reaction notes

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