Metribuzin synthesis
- Product Name:Metribuzin
- CAS Number:21087-64-9
- Molecular formula:C8H14N4OS
- Molecular Weight:214.29
35771-42-7
0 suppliers
inquiry
815-17-8
286 suppliers
$41.00/25g
21087-64-9
278 suppliers
$43.29/100mg
Yield:21087-64-9 95.3%
Reaction Conditions:
with sodium acetate in water at 95 - 100; for 3 h;Reagent/catalyst;Solvent;Temperature;
Steps:
2-6 Example 4 Synthesis of metribuzin
140 g of methylthiocarbazone and 18 g of anhydrous sodium acetate in Example 1 were added to a four-necked bottle.Add 150g of water,Heating up to 95 ° C,130 g of 3,3-dimethylbutyric acid dione was added in three batches.After the addition, the temperature was kept at 95-100 ° C for 3 h.Sampling analysis ends the reaction.Cool down to 30-35 ° C,After filtration, it is dried to obtain a purity of 97% or more of oxazinone 204g.The yield was 95.3%
References:
CN109206379,2019,A Location in patent:Paragraph 0036-0045
77-78-1
303 suppliers
$22.00/25g
33509-43-2
112 suppliers
$27.00/1g
21087-64-9
278 suppliers
$43.29/100mg
33509-43-2
112 suppliers
$27.00/1g
333-27-7
301 suppliers
$12.00/1g
21087-64-9
278 suppliers
$43.29/100mg
74-83-9
2 suppliers
$28.30/1ML
33509-43-2
112 suppliers
$27.00/1g
21087-64-9
278 suppliers
$43.29/100mg
812-01-1
60 suppliers
$168.00/250mg
33509-43-2
112 suppliers
$27.00/1g
21087-64-9
278 suppliers
$43.29/100mg