Koeckritz, P.; Schmidt, L.; Liebscher, J. published an article in 1987, the title of the article was Iminoformylation reaction of substituted crotononitriles. II. The reaction of ylidenemalonitriles with formamide acetals in the presence of acetic acid.Formula: C12H8N2 And the article contains the following content:
Iminoformylation of ylidenemalononitrile with formamide acetals in the presence of AcOH gave good yields of 1,1-dicyano-4-aminobuta-1,3-dienes, building blocks to heterocycles. Thus, condensation of H2CRCR1:C(CN)2 (R = H, Me, Et, R1 = Me, Et, Me2CHCH2, Ph, PhCH:CH, etc.) with R2R3NCH(OMe)2 [R2,R3 = Me; R2R3 = CH2CH2OCH2CH2), (CH2)4] gave 34-99% R2R3NCH:CRCR1:C(CN)2. The experimental process involved the reaction of 2-(2,3-Dihydro-1H-inden-1-ylidene)malononitrile(cas: 2510-01-2).Formula: C12H8N2
The Article related to crotononitrile iminoformylation, ylidenemalonitrile iminoformylation formamide acetal, cyanoaminobutadiene, butadiene cyano amino, Aliphatic Compounds: Nitriles, Isonitriles, and Acyl Cyanides and other aspects.Formula: C12H8N2
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts