133744-80-6Relevant academic research and scientific papers
Reactions of Spirohept-4-ene Derivatives with Tetracyanoethylene. Extensive Rearrangements Involving the Aza-Cope Process
Nishida, Shinya,Asanuma, Naoki,Murakami, Masashi,Tsuji, Takashi,Imai, Toshiro
, p. 4658 - 4663 (2007/10/02)
In CH2Cl2 or CH3CN, 1,1-dicyclopropylspirohept-4-ene (4a) reacted readily with TCNE in a unique manner to give 4--6-methylenebicyclooct-3-ene-2,2,3-tricarbonitrile (8a), an imine after extensive rearrangements,
Unique Thermal Isomerization of the Diels-Alder adduct of 1,1-Dicyclopropylspirohepta-4,6-diene
Nishida, Shinya,Asanuma, Naoki,Tsuji, Takashi,Imai, Toshiro
, p. 495 - 498 (2007/10/02)
The Diels-Alder adduct of 1,1-dicyclopropylspirohepta-4.6-diene (2a) with TCNE underwent unique rearrangement to give an imine derivative, whose formation may be explained by retro-Diels-Alder-re-attack of TCNE at the β position of 2a followed by an extensive isomerization involving the Cope rearrangement.
