Sodium methanethiolate → (2-Methylthio-quinazolin-4-yl)-(4-methoxy-phenyl)-methyl-amine

HRID 2381002Notes

Reaction equation

HRID 2381002 reaction equation
Cl[C:2]1[N:11]=[C:10]([N:12]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=2)[CH3:13])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]=1.[CH3:22][S-:23].[Na+]>C(OCC)(=O)C>[CH3:22][S:23][C:2]1[N:11]=[C:10]([N:12]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=2)[CH3:13])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]=1

Participants

4

Reactant 2

HCID 4378561Sodium methanethiolateHCID 117381122-chloro-N-(4-methoxyphenyl)-N-methylquinazolin-4-amine

Product 1

HCID 11771336(2-Methylthio-quinazolin-4-yl)-(4-methoxy-phenyl)-methyl-amineYield 7.1%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
70 °C

Procedure

A mixture of (2-chloro-quinazolin-4-yl)-(4-methoxy-phenyl)-methyl-amine (150 mg, 0.5 mmol), sodium methanethiolate (105 mg, 1.5 mmol) in 5 mL of solvent (THF:MeOH:water=3:1:1) was stirred at 70° C. for 4 h. The reaction mixture was diluted with 30 mL of ethyl acetate and it was washed with brine, dried over anhydrous Na2SO4, filtered and concentrated. The crude product was purified by chromatography on silica gel with acetate and hexane (1:5) as eluent, yielding 11 mg of title compound (7%). 1H NMR (CDCl3): 7.65 (d, J=8.4 Hz, 1H), 7.51-7.45 (m, 1H), 7.14-7.10 (m, 2H), 6.93-6.89 (m, 4H), 3.84 (s, 3H), 3.58 (s, 3H), 2.67 (s, 3H).

Workup

  1. washwas washed with brine
  2. dry with materialdried over anhydrous Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude product was purified by chromatography on silica gel with acetate and hexane (1:5) as eluent

Sources & evidence

ORD record
ord-91eb40bae54e402c876fea2b7728c132
Source dataset
uspto-grants-2012_09
Patent number
US08258145B2

Reaction notes

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