Tetrahedron Letters p. 77 - 80 (1984)
Update date:2022-07-29
Topics:
Takahashi, Kazuko
Nozoe, Tetsuo
Takase, Kahei
Kudo,Toshiaki
The conjugative interaction between the two terminal groups in title quinarenone 2 and its chloro- and methoxy-derivatives were evaluated, proving that the diatropicity of the seven-membered ring is a little larger in 2 than in tropone.Some of these quinarenones are also found to exist in equilibrium with their oligomers and show unexpectedly low barriers of rotation about the intercyclic bond.
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