67823-06-7Relevant academic research and scientific papers
Hydrogen Cyanide Chemistry. 9. Cycloaddition Reactions and Nitrenium Ion Type Reactivity of Diiminosuccinonitrile
Fukunaga, Tadamichi,Begland, Robert W.
, p. 813 - 821 (2007/10/02)
Cycloaddition reactions of diiminosuccinonitrile (DISN) with nucleophilic olefins yield a variety of products including cycloadducts and aziridines.All of the products derived from 1,3-dienes, styrene, para-substituted styrenes, cycloheptatriene, norbornene, and norbornadiene can be accounted for by rearrangements of a common intermediate, zwitterionic aziridinium ion.We introduce the concept of reverse polarization and propose that DISN is a latent nitrenium ion source (isoelectronic with carbenes) and that reverse polarization of one of the >C=N bonds of DISNis responsible for the observed reactions.Comments are made on reverse polarization of other >C=X bonds, and facile 1,1-cycloreversion of aziridines is also reported.
Structure-activity Relationship of Herbicidal 2,3-Dicyano-5-Substituted Pyrazines
Nakamura, Akira,Ataka, Toshiei,Segawa, Hirozo,Takeuchi, Yasutomo,Takematsu, Tetsuo
, p. 1555 - 1560 (2007/10/02)
Sixty six 2,3-dicyano-5-substituted pyrazines were synthesized and their herbicidal activities against barnyard grass were measured in pot tests to clarify the relationship between chemical structure and activity.The activity of 59 derivatives was related parabolically to the hydrophobic substituent parameter at the 5-position of the pyrazine ring.
