Cyclization of nitriles 41. Reaction of arylmethylenemalononitriles with malononitrile; crystal structure of 1-amino-3.5-diphenyl-2,4,4,6,6-pentacyano-1-Cyclohexene

Autor: Nesterov, V. N., Struchkov, Yu. T., Khoroshilov, G. E., Sharanin, Yu. A., Shklover, V. E.
Zdroj: Russian Chemical Bulletin; December 1989, Vol. 38 Issue: 12 p2537-2540, 4p
Abstrakt: 1-Amino-3,5-diaryl-2,4,4,6,6-pentacyano-1-cyclohexenes are prepared by reaction of arylmethylenemalononitriles with malononitrile. The cyclohexene ring of (IVa) has a distorted N2-C1=C2-C7=N1 fragment. Steric effects in (IVa) cause a substantial increase in C6-C1 and C3-C4 bond length to 1.546(4) and 1.570(4) Å, respectively.
Databáze: Supplemental Index