Heteroanalogous Dezapurines via Novel 4+2 Cycloaddition Reactions of Ketenimines
作者:Gert Kollenz、Gerhard Penn、Walter Ott、Karl Peters、Eva-Maria Peters、Hans Georg von Schnering
DOI:10.3987/r-1987-03-0625
日期:——
Reactions of cyclic oxalyl compounds - 32.
作者:Ewald Terpetschnig、Gerhard Penn、Gert Kollenz、Karl Peters、Eva-Maria Peters、Hans Georg von Schnering
DOI:10.1016/s0040-4020(01)96034-x
日期:1991.5
The heterocyclic 2,3-diones 1 – 3 have been found to undergo photochemical and thermal2+2-cycloaddition reactions via their 3-carbonyl group to diphenylketene and the diphenylketen-N-(4-methylphenyl)-imine. These reactions afford rearranged cycloadducts as well as 2+2-cycloreversion products.