Oxoindolizine and oxoindolizinium compounds useful as dyes

Details Oxoindolizine and oxoindolizinium compounds useful as dyes Oxoindolizine and oxoindolizinium compounds useful as dyes

1982-08-27

1986-03-18

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 582, 544105, 544127, 544316, 544319, 546 94, 546165, 546166, C07D47104

Patent

active

045770247

ABSTRACT:
Oxoindolizine and oxoindolizinium dyes are novel compounds useful in imaging, such as laser recording and reading. These dyes are formed by (1) the reaction of a cyclopropenone and a pyridine compound, (2) by reaction of (a) color-forming couplers with (b) reaction products from the reaction of cyclopropenones with pyridine compounds, or (3) by condensation reactions of indolizinols, indolizinones, and indolizinium ions.

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