
Journal of Organic Chemistry p. 3660 - 3664 (1989)
Update date:2022-08-03
Topics:
Weidner, C. H.
Wadsworth, D. H.
Bender, S. L.
Beltman, D. J.
Dyes of a new class, incorporating the dihydro-1-oxoindolizine structural unit, have been synthesized.Oxoindolizinium ions react with active methylene compounds to give dyes (λmax 560-630 nm) in high yield.The syntheses of the dihydro-1-oxoindo
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