Hydrazine hydrate (1:1) → HCID 178504831, compound

HRID 259701Notes

Reaction equation

HRID 259701 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([C:8](=O)[CH2:9][S:10]([CH3:13])(=[O:12])=[O:11])[CH:5]=[CH:6][CH:7]=1.COC(OC)[N:18]([CH3:20])C.O.[NH2:24]N>>[Br:1][C:2]1[CH:3]=[C:4]([C:8]2[C:9]([S:10]([CH3:13])(=[O:12])=[O:11])=[CH:20][NH:18][N:24]=2)[CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 3

HCID 24654Hydrazine hydrate (1:1)HCID 78373Dimethylformamide dimethyl acetalHCID 54299663HCID 54299663, compound

Product 1

HCID 178504831HCID 178504831, compound

Conditions

Temperature
70 °C

Procedure

1.1 g (0.004 mol) of (3'-bromo)(methylsulphonyl)acetophenone is dissolved in 20 ml (0.14 mol) of N,N-dimethylformamide dimethyl acetal and heated to 70° C. and then, after isolation of the intermediate enaminone, treated with 0.3 ml (0.006 mol) of hydrazine hydrate according to the procedure described in Example No. 1. After purification by trituration in diisopropyl ether, a beige powder is obtained:

Workup

  1. customAfter purification by trituration in diisopropyl ether
  2. customa beige powder is obtained

Sources & evidence

ORD record
ord-4bd5f351370943099da18dc07f8a6e6d
Source dataset
uspto-grants-1996_06
Patent number
US05523280

Reaction notes

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