G. Zilber et al., REDUCTION OF PYRACYLENE BY ALKALI-METALS - MECHANISM AND FORMATION OFAGGREGATES, Research of chemical intermediates, 22(9), 1996, pp. 839-854
Five reaction stages have been identified in the reduction of pyracyle
ne to its dianion. The same stages were also observed in the photochem
ical oxidation starting with the dianion. The formation of dimers of a
nions and of mixed valence aggregates is discussed.