Tetrahedron Letters p. 5645 - 5648 (1984)
Update date:2022-08-03
Topics:
Maier, Guenther
Hoppe, Manfred
Lanz, Klaus
Reisenauer, Hans Peter
New routes to cyclobutadiene (2) and methylenecyclopropene (4) are described.Matrix irradiation of cyclopropenylketene (9) gives cyclobutadiene.Flash pyrolysis of 8, 11, 16, 17 and 18 also generates cyclobutadiene, which can be deposited from the gas phase onto a window cooled to 10 K.Methylenecyclopropene is one of he products in the thermal fragmentation of 8 or 14.
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