Ammonia → Accelerator DM

HRID 652223

Reaction equation

HRID 652223 reaction equation
[SH:1][C:2]1[S:3][C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=1.[NH3:11].O=O>CC([O-])=O.CC([O-])=O.[Cu+2].O.O>[CH:8]1[CH:7]=[C:5]2[N:6]=[C:2]([S:1][S:1][C:2]3[S:3][C:4]4[C:5](=[CH:7][CH:8]=[CH:9][CH:10]=4)[N:11]=3)[S:3][C:4]2=[CH:10][CH:9]=1

Participants

6

Reactant 3

HCID 222AmmoniaHCID 977OxygenHCID 178418395HCID 178418395, compound

Product 1

HCID 8447Accelerator DM

Reagents, catalysts & solvents 2

HCID 165397Cupric acetate monohydrateCatalystHCID 962WaterSolvent

Conditions

Temperature
50 °C

Procedure

Following the procedure of Example 24, 50 g (0.3 mole) of 2-mercaptobenzothiazole, 8 mg (0.04 mMole) of Cu(OAc)2.H2O, 40.8 g (2.4 moles) of ammonia and 300 g of water were heated to 50° C., intensively stirred and placed under an oxygen pressure of 4 bars. Uptake of oxygen was immediately recorded and a deposit of dibenzothiazolyl disulphide was formed. After a reaction time of 2.5 hours, the 2-mercaptobenzothiazole conversion amounted to 95.4% and the yield of dibenzothiazolyl disulphide to 94.1% of the theoretical yield (selectivity: 98.6%).

Sources & evidence

ORD record
ord-560265ce4b5549489e5d78325c54e72b
Source dataset
uspto-grants-1987_06
Patent number
US04670556

Linked notes

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