Aryl(hetaryl)-containing gem-cyanonitroethenes: Synthesis, structure, and reactions with 2,3-dimethyl-1,3-butadiene
作者:R. I. Baichurin、N. I. Aboskalova、E. V. Trukhin、V. M. Berestovitskaya
DOI:10.1134/s1070363215080101
日期:2015.8
Methods of aryl(hetaryl)-substituted gem-cyanonitroethenes preparation are summarized, and the products structure elucidation by means of H-1, C-13 NMR, IR, and UV spectroscopy methods is discussed. E-Configuration of the compounds obtained has been proved. Reaction of the studied gem-cyanonitroethenes with 2,3-dimethyl-1,3-butadiene affords the diene synthesis adducts-6-aryl(hetaryl)-3,4-dimethyl-1-nitro-1-cyano- 3-cyclohexenes.
In the search for experimental and quantumchemical evidence for zwitterionic nature of (2 E )-3-[4-(dimethylamino)phenyl]-2-nitroprop-2-enenitrile – An extreme example of donor–π–acceptor push–pull molecule
作者:Radomir Jasiński、Barbara Mirosław、Oleg M. Demchuk、Dmytro Babyuk、Agnieszka Łapczuk-Krygier
DOI:10.1016/j.molstruc.2015.12.056
日期:2016.3
Abstract To explain an extremely low reactivity of (2E)-3-[4-(dimethylamino)phenyl]-2-nitroprop-2-enenitrile (1) in regard to other similar derivatives, the molecular structure of the title compound has been studied by experimental and theoretical methods. The crystalstructure analysis provided the evidence, that the title compound exists in a solid state as a stable E-isomer in a zwitterionic form