76-83-5Relevant articles and documents
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Halford
, p. 105,110 (1931)
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Red and green chemiluminescence of Na, Mg, and lanthanide triphenylmethyl derivatives during oxidation by dioxygen and cerium(IV)
Bulgakov,Kuleshov,Valiullina,Mustafin
, p. 1091 - 1094 (1999)
Chemiluminescence (CL) of triphenylmethyl organometallics (TPM), Ph3CNa, Ph3CMgCl, and Ph3CLnCl2 (Ln = Cd, Eu, and Dy), in THF and toluene during oxidation by O2 and the (NH4)2Ce(NO3)6 complex was found. The first CL is caused by the luminescence of two emitters: (Ph3C.)*, emitting in the green spectral region (λmax = 524, 550 nm), and an unstable product of substitution of the hydrogen atom in the phenyl ring of the Ph3C. radical, emitting in the red region (λmax = 580±20 nm). The emitter of the second CL, Ph3C. *, is generated in the elementary electron transfer from the Ph3C- anion to CeIV, reducing the latter to CeIII.
Process for preparing triphenylchloromethane
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Paragraph 0042-0059, (2021/06/22)
The invention discloses a process for preparing triphenylchloromethane, which comprises the following steps of carrying out Friedel-Crafts reaction on pure benzene and carbon tetrachloride under the catalytic action of anhydrous aluminum trichloride to obtain a product containing Friedel-Crafts reaction liquid, dropwise adding the Friedel-Crafts reaction solution into a pure benzene and hydrochloric acid aqueous solution for quenching reaction, and standing for layering after dropwise adding to obtain an oil phase, introducing dry HCl gas and adding anhydrous calcium chloride into the oil phase, carrying out heat preservation reaction in a temperature environment, and then carrying out filter pressing to obtain an organic phase, carrying out atmospheric distillation on the organic phase, and continuing vacuum drying when no fraction exists to obtain a dry crude product, and adding a xylene solvent into the dried crude product for dissolving, adding anhydrous calcium chloride, introducing dry HCl gas, carrying out a heat preservation reaction in a temperature environment, removing the HCl gas and part of the xylene solvent after the reaction is finished, and carrying out hot filtration, freezing crystallization, filter pressing, washing and drying to obtain the product. The method not only improves the yield and purity of triphenylchloromethane, but also avoids the problem of pollution in the process.
Synthesis method of triphenylchloromethane
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Paragraph 0018-0024, (2020/05/05)
The invention discloses a synthesis method of triphenylchloromethane, which relates to the technical field of medical intermediates. The synthesis method comprises the following steps of: S1, mixing and stirring benzene and anhydrous ferric trichloride for 10-15 min, and dropwise adding carbon tetrachloride when the liquid temperature is lower than 15 DEG C, S2, after dropwise adding is completed,heating to 150 DEG C while stirring, keeping the kettle pressure at 0.6-0.65 MPa, and carrying out a heat and pressure maintaining reaction for 1 h, and S3, carrying out post-treatment on the reaction solution obtained in the step S2 to obtain triphenylchloromethane. According to the synthesis method of triphenylchloromethane, anhydrous ferric trichloride is used as a catalyst, and the mass ratioof carbon tetrachloride to ferric trichloride is 1: (0.01-0.5), so that side reactions are reduced, reaction post-treatment is simplified, the output of wastewater is reduced, the reaction yield reaches 80-82%, and the purity reaches 99% or above.