Thiourea → HCID 58442480, compound

HRID 1480678Notes

Reaction equation

HRID 1480678 reaction equation
Br[CH2:2][C:3]([C:5]1[C:10]([CH3:11])=[CH:9][C:8]([O:12][C:13]2[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[CH:15][CH:14]=2)=[CH:7][C:6]=1[CH3:21])=O.[NH2:22][C:23]([NH2:25])=[S:24]>CCO>[CH3:20][O:19][C:16]1[CH:17]=[CH:18][C:13]([O:12][C:8]2[CH:9]=[C:10]([CH3:11])[C:5]([C:3]3[N:22]=[C:23]([NH2:25])[S:24][CH:2]=3)=[C:6]([CH3:21])[CH:7]=2)=[CH:14][CH:15]=1

Participants

4

Reactant 2

HCID 2723790ThioureaHCID 58442546HCID 58442546, compound

Product 1

HCID 58442480HCID 58442480, compoundYield 68%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of 2-bromo-1-(4-(4-methoxyphenoxy)-2,6-dimethylphenyl)ethanone (4.90 g, 14.0 mmol) and thiourea (1.07 g, 14.1 mmol) in 95% EtOH (20.0 mL) was heated at reflux for 100 min. The solution was concentrated and added with water (100 mL) and saturated aqueous Na2CO3 (5.0 mL). The resultant precipitate was filtered and recrystallized in toluene. The solids were filtered and dried under vacuum to give 4-(4-(4-methoxyphenoxy)-2,6-dimethylphenyl)thiazol-2-amine (3.10 g) as yellow solids in 68% yield: 1H NMR (500 MHz, CDCl3) δ 6.98 (m, 2H), 6.88 (m, 2H), 6.64 (s, 2H), 6.27 (s, 1H), 5.40 (bs, 2H), 3.81 (s, 3H), 2.13 (s, 6H).

Workup

  1. temperaturewas heated
  2. temperatureat reflux for 100 min
  3. concentrationThe solution was concentrated
  4. additionadded with water (100 mL) and saturated aqueous Na2CO3 (5.0 mL)
  5. filtrationThe resultant precipitate was filtered
  6. customrecrystallized in toluene
  7. filtrationThe solids were filtered
  8. customdried under vacuum

Sources & evidence

ORD record
ord-21e77785a8814e72bf890913a2198ed1
Source dataset
uspto-grants-2016_08
Patent number
US09409902B2

Reaction notes

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