Title:
PREPARATION METHOD FOR 4-PHENYLTHIO-BENZENETHIOL
Document Type and Number:
WIPO Patent Application WO/2019/119785
Kind Code:
A1
Abstract:
Disclosed in the present invention is a preparation method for 4-phenylthio-benzenethiol. The preparation method comprises the following steps: subjecting phenyl sulfide as a raw material to a halogenation reaction to obtain 4-halophenyl sulfide; subjecting the 4-halophenyl sulfide to a sulfhydrylation reaction to obtain a 4-phenylthio-phenylthiolate; and subjecting the 4-phenylthio-phenylthiolate to acidification. The preparation method of the present invention avoids the use of materials such as thiophenol which pollute the environment, and realizes efficient recycling of the reaction materials, solvents, water and the like. The preparation method of the present invention is a green process for the synthesis of 4-phenylthio-phenylthiol without organic waste, waste acid and waste water discharge.
Inventors:
CHEN ZHIRONG (CN)
LI WOYUAN (CN)
YIN HONG (CN)
ZHOU GUIYANG (CN)
LI HAORAN (CN)
PAN SHUAIFENG (CN)
LIAN MING (CN)
QIN GUANGDE (CN)
LI QICHUAN (CN)
LI WOYUAN (CN)
YIN HONG (CN)
ZHOU GUIYANG (CN)
LI HAORAN (CN)
PAN SHUAIFENG (CN)
LIAN MING (CN)
QIN GUANGDE (CN)
LI QICHUAN (CN)
Application Number:
PCT/CN2018/095380
Publication Date:
June 27, 2019
Filing Date:
July 12, 2018
Export Citation:
Assignee:
ZHEJIANG NHU CO LTD (CN)
UNIV ZHEJIANG (CN)
ZHEJIANG NHU SPECIAL MAT CO LTD (CN)
UNIV ZHEJIANG (CN)
ZHEJIANG NHU SPECIAL MAT CO LTD (CN)
International Classes:
C07C319/20; C07C323/09
Domestic Patent References:
| WO2016133739A1 | 2016-08-25 |
Foreign References:
| CN108129368A | 2018-06-08 | |||
| CN1590371A | 2005-03-09 | |||
| JPH0578308A | 1993-03-30 |
Other References:
PINEHART, A. ET AL.: "Functionalized p-Phenylene Sulfides Synthesis of New Molecular Wires", TETRAHEDRON LETTERS, vol. 39, no. 7, 12 February 1998 (1998-02-12), pages 543 - 546, XP004106733, DOI: 10.1016/S0040-4039(97)10624-4
CHEN, ZHAN ET AL.: "A High-Efficiency Hybrid White Organic Light-Emitting Diode Enabled by a New Blue Fluorophor", JOURNAL OF MATERIALS CHEMISTRY C, vol. 3, no. 17, 16 March 2015 (2015-03-16), pages 4284 - 4289, XP055619627
MAO, WEICHUN ET AL.: "Improvement on the Synthesis of 1,2-Benzenedithiol", FINE CHEMICAL INTERMEDIATES, vol. 40, no. 6, 31 December 2010 (2010-12-31), pages 44, XP055619632
CHEN, ZHAN ET AL.: "A High-Efficiency Hybrid White Organic Light-Emitting Diode Enabled by a New Blue Fluorophor", JOURNAL OF MATERIALS CHEMISTRY C, vol. 3, no. 17, 16 March 2015 (2015-03-16), pages 4284 - 4289, XP055619627
MAO, WEICHUN ET AL.: "Improvement on the Synthesis of 1,2-Benzenedithiol", FINE CHEMICAL INTERMEDIATES, vol. 40, no. 6, 31 December 2010 (2010-12-31), pages 44, XP055619632
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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