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ChemicalBook CAS DataBase List diiminosuccinonitrile
28321-79-1

diiminosuccinonitrile synthesis

2synthesis methods
A solution of dry Triethylamine (1.5 mL) in CH2Cl2 (15 mL) is added dropwise over  45 min to a solution of Hydrogen Cyanide (20 g, 0.74 mol) and cyanogen (17.4 g, 0.34 mol) in CH2Cl2 (120 mL) at -45 to -40 °C; the reaction is mildly exothermic and DISN precipitates as the triethylamine is  added; after 30 min the product is collected while still cold and washed with CH2Cl2 and ether to give 33.6  g (95%) of DISN as a fine tan powder of sufficient purity for synthetic use.
18514-52-8 Synthesis
2,3-DIAMINOBUT-2-ENEDINITRILE

18514-52-8
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Yield:28321-79-1 95%

Reaction Conditions:

with 2,3-dicyano-5,6-dichloro-p-benzoquinone in acetonitrile; for 0.25 h;

Steps:

1.1 Synthesis of diiminosuccinonitrile

50 mL of acetonitrile was added to 10 mmol of diaminomaleonitrile, and after stirring and dissolving, 10 mmol of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone was added, and after stirring for 15 min, the obtained liquid was filtered. The components were concentrated and dried to constant weight to obtain diiminosuccinonitrile (brown solid, 1.01 g, yield 95%).

References:

CN114195781,2022,A Location in patent:Paragraph 0082-0085

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