121030-47-5Relevant articles and documents
Indolizines. 4. Dyes Derived from Oxoindolizinium Ions and Active Methylene Compounds
Weidner, C. H.,Wadsworth, D. H.,Bender, S. L.,Beltman, D. J.
, p. 3660 - 3664 (2007/10/02)
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