75159-07-8Relevant academic research and scientific papers
Unexpected course of reaction between (E)-2-aryl-1-cyano-1-nitroethenes and diazafluorene: why is there no 1,3-dipolar cycloaddition?
Jasiński, Radomir,Kula, Karolina,K?cka, Agnieszka,Miros?aw, Barbara
, p. 909 - 915 (2017/04/14)
Abstract: Reactions between (E)-2-aryl-1-cyano-1-nitroethenes and diazafluorene lead to acyclic 2,3-diazabuta-1,3-diene derivatives, instead of the expected pyrazoline systems. DFT calculations suggest that this is a consequence of formation of zwitterionic structure in the first stage of the reaction. It must be noted that this is a specific property of the (E)-2-aryl-1-cyano-1-nitroethenes group, in contrast to most other conjugated nitroalkenes. Graphical abstract: [Figure not available: see fulltext.]
Thione S-Imides. The Reaction with Carbon-Hetero Atom Double Bond
Saito, Takao,Oikawa, Isao,Motoki, Shinichi
, p. 1023 - 1027 (2007/10/02)
9-Fluorenethione S-p-toluenesulfonimide reacted as a 1,3-dipole with imines, oximes, and thiones to form (3+2)cycloadducts, while with symmetrical azines and aldehydes, unsymmetrical azines, N-(p-tolylsulfonyl)imines and fluorenone were obtained as a result of the decomposition of the cycloadducts.
