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ChemicalBook CAS DataBase List Pyraclostrobin
175013-18-0

Pyraclostrobin synthesis

7synthesis methods
151827-83-7 Synthesis
Methyl [2-(bromomethyl)phenyl]methoxycarbamate

151827-83-7
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76205-19-1 Synthesis
1-(4-CHLOROPHENYL)-3-HYDROXY-1H-PYRAZOLE

76205-19-1
192 suppliers
$7.00/5g

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Yield:175013-18-0 83%

Reaction Conditions:

with potassium carbonate in N,N-dimethyl-formamide;propan-2-one; for 7 h;Reflux;

Steps:

2.5 Example 2

(5) Dissolving methyl N-methoxy-N- (2-bromomethylphenyl) carbamate with DMF as solvent0.12 mol of 1- (4-chlorophenyl) -pyrazolol, 0.15 mol of K2CO3 and acetone were placed in a reactor. After the temperature was raised to reflux, a solution of 0.1 mol of N-methoxy-N-2-bromomethylphenylcarbamate solution was refluxed for 7 hours. After filtration and drying, the solid material was completely dissolved by stirring with anhydrous methanol, and then cooled and crystallized to obtain a light The yellow solid is the target product pyraclostrobin.
The purity of the product pyraclostrobin prepared by the above method was 89.1% and the yield was 83%

References:

CN106008347,2016,A Location in patent:Paragraph 0027; 0033; 0034

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