- 2, 3, 5, 6-tetrafluoro-7, 7', 8, 8'-tetracyanoquinodimethane and preparation method thereof
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The invention discloses 2, 3, 5, 6-tetrafluoro-7, 7', 8, 8'-tetracyanoquinodimethane and a preparation method thereof. The preparation method comprises diazotization: carrying out diazotization of a compound A and a compound B to obtain a compound C, reduction: reducing the compound C into a compound D, oxidation: oxidizing the compound D into a compound E, and condensation: condensing the compound E and malononitrile to obtain a compound F, wherein the compound F is 2, 3, 5, 6-tetrafluoro-7, 7', 8, 8'-tetracyanoquinodimethane and the compounds A, B, C, D, E and F are shown in the description. The preparation method has good environmental friendliness and a high yield of 80% or more, is simple and easy and is suitable for industrial production.
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- Synthesis method of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane
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The invention discloses a synthesis method of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane and relates to the technical field of organic electroluminescent materials. On the basis of simplifying the synthesis method, wastewater generated by post-treatment is reduced, and the safety of a synthesis process is improved, so that the synthesis method is applicable to industrial production. The synthesis method comprises the following steps: firstly, carrying out a condensation reaction by taking 2,3,5,6-tetrafluoroterephthaloyl chloride andtrialkylsilyl cyanide as raw materials under an oxygen-free and dry environment to obtain an intermediate; and then, removing trialkylsiloxy in the intermediate to obtain F4-TCNQ. The synthesis method of the 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane, disclosed by the invention, is used for synthesizing organic electroluminescent materials.
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Paragraph 0097; 0109
(2017/06/08)
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- Nanostructured charge transfer complex of CuTCNQF4 for efficient photo-removal of hexavalent chromium
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The high toxicity of hexavalent chromium warrants the development of efficient catalysts that could reduce chromium into relatively non-toxic trivalent chromium species. Pristine charge transfer complexes of the MTCNQ family (M = Cu or Ag; TCNQ = 7,7,8,8-
- La, Duong Duc,Ramanathan, Rajesh,Rananaware, Anushri,Bansal, Vipul,Bhosale, Sheshanath V.
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p. 33931 - 33936
(2016/05/09)
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