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Ene-between isophorone and tetracyanoethylene

✍ Scribed by André Cornénlis; Pierre Laszlo; Christian Pasquet

Book ID
104238547
Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
151 KB
Volume
14
Category
Article
ISSN
0040-4039

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## Abstract The reaction of 4,4′‐dimethoxythiobenzophenone (**1a**) with tetracyanoethylene (TCNE) afforded an unusual type of 2:1 adduct with the structure of thiacyclopent‐2‐ene (**5a**). On the other hand, the reaction of thiobenzophenone (**1b**) with TCNE afforded the corresponding thiophene,