Tetrahedron letters

Neue wege zum cyclobutadien und methylencyclopropen

G Maier, M Hoppe, K Lanz, HP Reisenauer

文献索引：Maier, Guenther; Hoppe, Manfred; Lanz, Klaus; Reisenauer, Hans Peter Tetrahedron Letters, 1984 , vol. 25, # 49 p. 5645 - 5648

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被引用次数: 50

摘要

Abstract 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 the products in the thermal fragmentation of 8 or 14.