Method for the synthesis of sulfonated rubrene

Details Method for the synthesis of sulfonated rubrene Method for the synthesis of sulfonated rubrene

1984-05-07

1987-09-29

Kyle, Deborah L.

Compositions

Chemiluminescent

25218629, C09K 1106

Patent

active

046967702

ABSTRACT:
An improved process for the production of sulfonated rubrene is disclosed whereby fuming sulfuric acid is employed as the sulfonating agent. The resultant sulfonated rubrene is used as a fluorescer in water-soluble chemiluminescent mixtures e.g. in combination with a water-soluble amide of oxalic acid and hydrogen peroxide or a source of hydrogen peroxide.

REFERENCES:
patent: 3888786 (1975-06-01), Maulding
patent: 3893938 (1975-07-01), Rauhut
patent: 3970660 (1976-07-01), Bollyky
patent: 3994820 (1977-11-01), Maulding et al.
patent: 4313843 (1982-02-01), Bollyky et al.
patent: 4366079 (1982-12-01), Rauhut et al.
patent: 4407743 (1983-10-01), Tseng
patent: 4462931 (1984-07-01), Cohen et al.

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