Diuron synthesis
- Product Name:Diuron
- CAS Number:330-54-1
- Molecular formula:C9H10Cl2N2O
- Molecular Weight:233.09
124-40-3
521 suppliers
$18.00/100ml
102-36-3
207 suppliers
$18.00/5g
330-54-1
363 suppliers
$20.00/25g
Yield:330-54-1 98.3%
Reaction Conditions:
in toluene at 5 - 12;Inert atmosphere;Green chemistry;Temperature;
Steps:
1 Example 1
Four bottles of 100 grams of toluene, cooled to about 5 , access to 6.5g dimethylamine gas, the formation of dimethylamine toluene solution (mass concentration of 6.1%).With stirring, 100 g of a toluene solution of 3,4-dichloroisocyanate in toluene at 25%3,4-dichloroisocyanate and dimethylamine feed molar ratio of 1: 1.08) into the nitrogen 2h (detection of acidity 0.1% or less), in 30-50min drop into the dimethylamine solution, Make sure that the dropping process temperature is between 5-12 ° C and after dripping. Continue stirring for 30 min. Filtration (filter cake can be washed with all the mother liquor) to a white solid, 90 after drying the quality of 30.5g, impurity content of 0.1%, the yield of 98.3%.After the preparation of the mother liquor, the synthesis yield was 98.2% and the impurity content was 0.11%.
References:
CN107129445,2017,A Location in patent:Paragraph 0010; 0027; 0028; 0029; 0030; 0031; 0032
7159-94-6
25 suppliers
$28.60/250mg
124-40-3
521 suppliers
$18.00/100ml
330-54-1
363 suppliers
$20.00/25g
2327-02-8
71 suppliers
$70.00/500mg
124-40-3
521 suppliers
$18.00/100ml
330-54-1
363 suppliers
$20.00/25g