56254-06-9Relevant articles and documents
PROCESS FOR SYNTHESIZING HALOGENATED DERIVATIVES OF FLUORESCEIN FOR USE IN THE PRODUCTION OF NON-VOLATILE MEMORY DEVICES
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Page/Page column 7, (2008/06/13)
A process performs solid phase synthesis of halogenated derivatives of fluorescein, and includes reacting fluorescein with a halide MX, wherein M is an alkali metal and X is a halogen, and Oxone? (2 KHSO5.KHSO4.K2SO4), at a temperature higher than or equal to 150° C. A structure uses a halogenated derivative of fluorescein selected from the group consisting of 2′,4′,5′-trichlorofluorescein, 2′,4′,5′,7′-tetrachlorofluorescein, 4′,5′-diiodofluorescein diacetate and 2′,4′,5′-triiodofluorescein as electro-bistable material in a non-volatile memory device.
