6320-02-1Relevant articles and documents
SINGLE-STEP SYNTHESIS METHOD OF ARYL THIOL AND APPLICATION THEREOF
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Paragraph 0032; 0033; 0063; 0067; 0069; 0070, (2017/09/02)
The present invention relates to a single-step synthesis method of aryl thiol, and more specifically, to a method of synthesizing aryl thiol in a single-step by making aryl halide react with alkane dithiol in the presence of a transition metal catalyst. According to the present invention, a single-step synthesis method using the transition metal catalyst, the synthesis method which is capable of synthesizing aryl thiol from aryl halide at a high yield, can be provided. Various aryl halides may be applied to the synthesis method. Further, the synthesis method has advantages that an easily usable reagent may be used, operations are simple, and reactions can be performed under mild conditions. In addition, the synthesized aryl thiol may be used in the synthesis of advanced molecules such as diaryl sulfides and benzothiophenes.COPYRIGHT KIPO 2017
Oxidative cleavage of S-Arylmercaptoacetic acids by pyridinium chlorochromate: Kinetic and correlation analysis
Kabilan,Girija,Rajagopal
, p. 683 - 688 (2007/10/03)
Kinetics of oxidation of 24 S-Arylmercaptoacetic acids (SAMA) by pyridinium chlorochromate (PCC) have been studied in acid medium. The product of oxidation is the corresponding thiophenol. The rate data of meta- and para-substituted acids have been correlated well with σI, σ°R values and the meta-compounds correlate well with F,R values. The reaction constants are negative and of smaller magnitudes. Further, the ortho-substituted acids show a good correlation with triparametric equation involving Taft's σI and σ°R and charton's steric parameter v. There is no considerable steric contribution to the total orthosubstituent effect. Based on these observations, the mechanism involving the formation of protonated arylsulfinylacetic acid intermediate, followed by an intramolecular rearrangement leading to the product thiophenol has been proposed.
Peroxide Salts as Reagents in Oxidative Halogenation of Aromatic Compounds
Rudakova, N. I.,Erykalov, Yu. G.,Zharikova, S. M.,Dmitrieva, E. V.,Mataradze, M. S.
, p. 271 - 272 (2007/10/03)
Chloromesitylene, chloro-p-xylene, and 1-bromonaphthalene are formed in 78, 79, and 86percent yield, respectively, under the action of the halogenating system hydrogen peroxide-hydrohalic acid-AcOH.The following aryl halides are also formed in high yields in this halogenating system: 2-bromothiophene (89 - 92percent) upon bromonation of thiophene; chlorobenzene (77 - 79percent) and iodobenzene (79 - 81percent) upon chlorination and iodination of benzene.