938-63-6Relevant articles and documents
2, 3, 5, 6-tetrafluoro-7, 7', 8, 8'-tetracyanoquinodimethane and preparation method thereof
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Paragraph 0061, (2017/05/12)
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.
4-oxo-2,3,5,6-tetrafluorocyclohexa-2,5-dienylidene - A highly electrophilic triplet carbene
Sander, Wolfram,Huebert, Rolf,Kraka, Elfi,Graefenstein, Juergen,Cremer, Dieter
, p. 4567 - 4579 (2007/10/03)
The 4-oxocyclohexa-2,5-dienylidenes are an interesting class of highly electrophilic carbenes. We investigated the reactivity of the 2,3,5,6-tetrafluorinated and -tetrachlorinated derivatives 1b and 1c with small molecules under conditions of matrix isola