- Method for catalytically synthesizing 4-(trans-4-alkylcyclohexyl) cyclohexanone
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The invention provides a method for catalytically synthesizing 4-(trans-4-alkylcyclohexyl) cyclohexanone, which comprises the following steps: by taking trans-4-alkylcyclohexyl phenol as a raw material, carrying out catalytic hydrogenation to obtain trans-4-(trans-4-alkylcyclohexyl) cyclohexanol, and then, oxidizing the trans-4-(trans-4-alkylcyclohexyl) cyclohexanol with an oxidizing agent under the catalytic action of piperidine nitroxide free radicals to obtain 4-(trans-4-alkyl cyclohexyl) cyclohexanone. According to the synthesis method, piperidine nitroxide free radicals containing substituent groups are used as the catalyst, compared with a TEMPO catalyst, the production cost is reduced, cost economy is achieved, meanwhile, the problem that TEMPO is difficult to separate and causes pollution easily is solved, and the synthesis method is suitable for actual industrial production.
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Paragraph 0030-0032
(2021/06/21)
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- Synthesis and electro-optical properties of novel liquid crystals having a cyclohexyl trifluoromethyl ether moiety
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A convenient synthetic method is described for new type liquid crystals (LCs) containing a cyclohexyl trifluoromethyl ether moiety. The novel LCs are shown to exhibit mesophases and decrease birefringence and threshold voltage of host LCs upon mixing by 2
- Kanie, Kiyoshi,Tanaka, Yoichiro,Shimizu, Masaki,Takehara, Sadao,Hiyama, Tamejiro
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p. 827 - 828
(2007/10/03)
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