1,2-Ethenediylbis(oxy) (9CI) synthesis
- Product Name:1,2-Ethenediylbis(oxy) (9CI)
- CAS Number:131543-46-9
- Molecular formula:C2H2O2**
- Molecular Weight:58.03608
Yield:131543-46-9 94%
Reaction Conditions:
Stage #1: ethylenediaminewith sodium nitrate at 46; for 3.83333 h;
Stage #2: ethyl crotonatewith tetrakis(triphenylphosphine)platinum at 57; for 3.33333 h;Temperature;
Steps:
3 Example 3
a method for synthesizing an organic intermediate oxalic acid aldehyde,Including the following steps: A: 2 mol of ethylenediamine was added to the reaction vessel, and the temperature was slowly raised.Raise the temperature to 46 °C in 50 min, Add 1.3L of 22% sodium nitrate solution, Control the stirring speed of 220rpm, After reacting for 3 h, 6 mol of a 41% by mass of ethyl crotonate solution was added.Continue to react for 80 minutes; B: Raise the temperature to 57 °C, add 3 mol of tetrakis(triphenylphosphine) platinum powder, Continue the reaction for 120 min, then lower the temperature to 16 °C. Wash 5 times with a 16% potassium chloride solution,Washing 4 times with a 45% methylene chloride solution,Washed 4 times with a 57% dichloroacetonitrile solution. Recrystallization from a solution of 86% in 2-hexanol,The anhydrous sodium sulfate dehydrating agent was dehydrated to obtain 109.04 g of the finished oxalic acid aldehyde, and the yield was 94%.
References:
CN108238862,2018,A Location in patent:Paragraph 0018; 0019; 0022; 0023; 0024-0027
13360-52-6
0 suppliers
inquiry
131543-46-9
1 suppliers
inquiry
56-81-5
1929 suppliers
$5.00/25g
473-81-4
73 suppliers
$17.00/1g
131543-46-9
1 suppliers
inquiry
56-82-6
176 suppliers
$82.00/500mg
107-21-1
1377 suppliers
$10.00/25g
131543-46-9
1 suppliers
inquiry
