Dimethyl Sulfate → HCID 18616026, compound
Reaction equation
[CH3:1][C:2]1[C:3]([C:11]#[N:12])=[C:4]([SH:10])[CH:5]=[CH:6][C:7]=1[C:8]#[N:9].[OH-].[Na+].S(OC)(O[CH3:19])(=O)=O>O>[CH3:1][C:2]1[C:3]([C:11]#[N:12])=[C:4]([S:10][CH3:19])[CH:5]=[CH:6][C:7]=1[C:8]#[N:9]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 25 °C
Procedure
50 g (0.29 mol) of 3-methyl-2,4-dicyanothiophenol were added to a solution of 23 g (0.58 mol) of NaOH in 400 ml of water, and 73 g (0.58 mol) of dimethyl sulfate were then added dropwise at 25-35° C. The mixture was stirred at 25° C. for 16 h, after which a solid had precipitated out, which was filtered off with suction, washed twice with water and then recrystallized from glacial acetic acid/water. Yield: 43 g (80%).
Workup
- additionwere then added dropwise at 25-35° C
- customafter which a solid had precipitated out
- filtrationwhich was filtered off with suction
- washwashed twice with water
- customrecrystallized from glacial acetic acid/water
Sources & evidence
- ORD record
- ord-b11a3db627c248289e05d0460f005f70
- Source dataset
- uspto-grants-2003_04
- Patent number
- US06541423B1
Reaction notes
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