1
SECTION 11
(1) CYCLOOCTATETRAENE
G. Deslongchamps, P. Deslongchamps.
J. Org. Chem. 2018, 83, 5751-5755.
(2) WALK REARRANGEMENT
(2018)
(3) CYCLOBUTADIENE
2
(1) CYCLOOCTATETRAENE
3
Structural changes in cyclooctatetraene:
a) ring inversion; b) bond shifting; c) valence bond isomerization
4
Electronic delocalization in s-cis butadiene and conrotatory cyclization
5
Bond shifting and
valence isomerization of COT
6
Thermal and
photochemical
conversion of COT to
semi bullvalene (SB)
7
Thermal and photochemical bond shifting in COT
8
Thermal conversion of tricyclo[3.3.0.02,6]-octa-3,7-diene TOD
into semibullvalene (SB)
9
Photochemical conversion of barrelene (B)
to semibullvalene (SB)
10
Thermal conversion of COT to 3,8-dihydropentalene (11)
11
Ring current in aromatic cyclooctatetraene dianion
12
(2) WALK REARRANGEMENT
13
Walk rearrangement of bicyclo[n.1.0]polyenes
14
Walk rearrangement of bicyclo[2.1.0]pentene 1
15
Walk rearrangement of Norcaradiene derivatives
16
Walk rearrangement of Norcaradiene 2
17
Walk rearrangement of bicyclo[6.1.0]nonatriene system
18
Walk rearrangement of bicyclo[6.1.0]nonatriene 3
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(3) CYCLOBUTADIENE