84868-02-0Relevant articles and documents
Method for catalytically synthesizing 4-(trans-4-alkylcyclohexyl) cyclohexanone
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Paragraph 0034; 0037, (2021/06/21)
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.
Aliphatic Liquid Crystals, 8. - Bi- and Tercyclohexyl Derivatives by Claisen Rearrangement
Sucrow, Wolfgang,Raedecker, Guenter
, p. 219 - 224 (2007/10/02)
Claisen rearrangement of the acrylic esters 7 and 21 transfers the configuration of the cyclohexenols trans-2 and trans-17 to the aldehydes 11 and 23.Robinson annelation converts the latter to the title compounds 15a and 27a.The synthetic sequence is desi