ChemicalBook CAS DataBase List Diaminomaleonitrile

Diaminomaleonitrile synthesis

5synthesis methods

Product Name:Diaminomaleonitrile
CAS Number:1187-42-4
Molecular formula:C4H4N4
Molecular Weight:108.1

Diaminomaleonitrile is obtained by tetramerization of hydrocyanic acid in the presence of catalysts such as alkylaluminum compounds.

75-86-5 Synthesis

75-86-5
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1187-42-4
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Yield:1187-42-4 88%

Reaction Conditions:

with sodium cyanide;methylthiol at 60; for 2 h;Autoclave;Temperature;Time;Reagent/catalyst;

Steps:

2

Example 2 In an autoclave, 10 g of NaCN is added to 130 ml of acetone cyanohydrin. Then 6.54 g of methanethiol is added. The solution is then stirred at 60° C. for 2 hours. The solution turns orange. The excess acetone cyanohydrin is then neutralized by adding soda. The solution is then filtered and evaporated to give an orange-yellow solid (amount recovered=33.7 g corresponding to a yield=88%).

References:

US2015/197487,2015,A1 Location in patent:Paragraph 0029