77866-59-2Relevant academic research and scientific papers
Preparation method for selectively synthesizing cis-4-n-amyl cyclohexylmereaptan
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Paragraph 0013; 0014; 0015, (2017/08/30)
The invention relates to a preparation method for selectively synthesizing cis-4-n-amyl cyclohexylmereaptan, which belongs to the field of organic synthesis. The method comprises the following steps: 4-pentylcyclohexanone and sodium borohydride are added into a tetrahydrofuran water mixed solvent, the materials are subjected to a reduction reaction to obtain the 4-amylcyclohexanol; the 4-amylcyclohexanol and methylsulfonyl chloride are subjected to a methyl sulfonylation reaction in a dichloroethanes solvent, the 4-n-amyl cyclohexyl sulfonate with content of more than 98% can be obtained through crystallization; the 4-n-amyl cyclohexyl sulfonate and potassium thioacetate are subjected to a sulfur acetylation reaction in a N,N-dimethyl formamide solvent to obtain the thiolacetic acid-4-n-amyl cyclohexyl ring; the material is subjectd to a low-temperature saponification reaction in a methanol hydrosolvent to obtain the cis-4-n-amyl cyclohexylmereaptan, and the cis products selectivity is greater than 99%. The method has the advantages of short reaction time, simple operation, and high cis products selectivity.
The Thermal Properties of (4-Substituted Cyclohexyl) 4-Substituted Cinnamates
Hayashi, Shigetsugu,Takenaka, Shunsuke,Kusabayashi, Shigekazu
, p. 283 - 284 (2007/10/02)
The thermal properties for a homologous series of 4-alkylcyclohexyl 4-alkoxy- and 4-cyanocinnamates are examined.They exhibit nematic phases with low melting points.The effect of the cyclohexyl group on the mesophase stability is discussed.
