Synthesis of LC Intermediate Containing Trimethyl Silyl Acetylene Group

Zong Cheng Miao; Yi Wei Wang; Yuan Yuan Li; Lei Zhang; Xin Zhang; Zhi Xue Wang

doi:10.4028/www.scientific.net/AMR.781-784.280

Paper Titles

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Synthesis, Characterization and Properties of Tri-n-octylmethyl-ammonium Methyl Carbonate
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Synthesis of 2-Pyridyl Tribromomethyl Sulfone
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Synthesis of Butanone 1,2 - Propanediol Ketal by Sulfamic Acid as Catalyzed
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Synthesis of LC Intermediate Containing Trimethyl Silyl Acetylene Group
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A Novel Process for Synthesis of Cyclohexyl Ferulate
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A New Method for the Biomimetic Synthesis of 2-Hydroxy-3-Amino-1,4-Naphthoquinone
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N,N-Diethylammonium O,O’-Di(3-methylphenyl)dithiophosphate as Corrosion Inhibitor for Q235 Steel in HCL Solution
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Adsorption Behavior and Corrosion Inhibition of S-benzyl-O,O'-dibenzyldithiophosphate for Carbon Steel in Hydrochloric Acid Solution
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 781-784Synthesis of LC Intermediate Containing Trimethyl...

Synthesis of LC Intermediate Containing Trimethyl Silyl Acetylene Group

Abstract:

In order to obtain the important liquid crystal intermediate with trifluoromethyl substitutent, Sonogashira coupling reaction was used to synthesize the compound. In this paper, the intermediate was synthesized by 4'-Iodo-4-pentyl-biphenyl and trimethyl silyl acetylene (TMSA) as raw materials. During the synthesis, the optimum reaction conditions were obtained, that the mol ratio of 4'-Iodo-4-pentyl-biphenyl and trimethyl silyl acetylene is 1:2, the reaction temperature is 30 oC, and the reaction time is 10 h.