Synthesis method of 9,9'-spirobifluorene derivative

Abstract

The invention discloses a synthesis method of a 9,9'-spirobifluorene derivative, and belongs to the field of organic chemical synthesis. The method comprises the steps that 2-bromochlorobenzene as a raw material acts with phenylmagnesium bromide and then reacts with bromofluorenone at 50-100 DEG C in a methyltetrahydrofuran solvent, hydrolysis and filtration are performed, solid performs closed-loop synthesis under acid catalysis to produce bromo-9,9'-spirobifluorene, and bromo-9,9'-spirobifluorene reacts with lithium diphenylphosphide to synthesize the 9,9'-spirobifluorene diphenylphosphine derivative. The synthesis method is simple in process; raw materials are low in price and easy to obtain; the production cost of series products is obviously lowered during synthesis; and the application of the fluorene derivative in design and synthesis of organic photoelectric materials as an intermediate is extended.

Description

technical field

[0001] The invention relates to a synthesis method of a class of organic phosphine derivatives, in particular to a synthesis method of a class of 9,9'-spirobifluorene derivatives, belonging to the field of organic chemical synthesis. Background technique

[0002] Organic electroluminescent materials have the advantages of wide material selection, low energy consumption, high efficiency and luminous brightness, ultra-thin, full curing, fast response, active light emission, and large-area flexible display, etc., and are expected to become the new generation of flat panel display technology. The core component has become one of the research hotspots in the fields of organic electronics and optoelectronic information. Fluorene-based organophosphine derivatives are a class of luminescent materials with broad application prospects. Fluorene has high photothermal stability, solid-state fluorene fluorescence quantum efficiency as high as 60%-80%, and band gap energ...

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