Sulfuryl chloride → HCID 12823255, compound

HRID 1012214Notes

Reaction equation

HRID 1012214 reaction equation
[Cl:1][C:2]1[N:6]([CH3:7])[N:5]=[C:4]([CH3:8])[C:3]=1C=O.S(Cl)([Cl:14])(=O)=O>ClC1C=CC=CC=1Cl>[Cl:14][C:3]1[C:4]([CH3:8])=[N:5][N:6]([CH3:7])[C:2]=1[Cl:1]

Participants

4

Reactant 2

HCID 24648Sulfuryl chlorideHCID 27773975-Chloro-1,3-dimethylpyrazole-4-carboxaldehyde

Product 1

HCID 12823255HCID 12823255, compound

Reagents, catalysts & solvents 1

HCID 72391,2-DichlorobenzeneSolvent

Conditions

Temperature
20 °C

Procedure

To 300 g of a 22.7% solution of 5-chloro-1,3-dimethyl-1H-pyrazole-4-carbaldehyde in 1,2-dichlorobenzene are added dropwise at 80° C. 58 g of sulphuryl chloride within 120 minutes. After the metered addition has ended, the reaction solution is stirred for a further 3 hours. The reaction solution is cooled to 20° C. and the solution is analyzed by GC. 4,5-Dichloro-1,3-dimethyl-1H-pyrazole has formed quantitatively.

Workup

  1. additionAfter the metered addition

Sources & evidence

ORD record
ord-8ff86ebe0744455da78916c2961e5e05
Source dataset
uspto-grants-2011_07
Patent number
US07977494B2

Reaction notes

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