عنوان البحث(Papers / Research Title)
Synthesis 2-AlkylCyclohexanones by Free- Radical Addition
الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)
مهند موسى كريم الحجامي
Citation Information
مهند,موسى,كريم,الحجامي ,Synthesis 2-AlkylCyclohexanones by Free- Radical Addition , Time 11/11/2017 06:28:26 : كلية العلوم
وصف الابستركت (Abstract)
Free -radical addition of cyclohexanone to several alkenes studied in the presence of ammonium persulfate as initiator
الوصف الكامل (Full Abstract)
First time Kharash showed that, by a free- radical addition cycloketones to unsaturated compounds and as a result generate the appropriate derivative ketones [1]. This idea was implemented and a number of scientists synthesized as a result of numerous derivatives cycloketones using as a baseline components of olefin hydrocarbons [2-4], vinyl ethers [5, 6], acrylonitrile [7], vinylketone [8], allyl compounds [9, 10 ]. The authors used organic peroxides and hydroperoxides as a initiator. Modern chemistry cycloketones and its successful application in various industries as aromatic substances [11] to get cycloalcohol, plasticizers [12], super glues [13], it s need the development of environmentally sound and economically viable way to obtain 2- alkylcyclohexanones. In previous work[14] we have studied the reaction of accession to synthesis alkylcyclopentanones using inorganic compounds as initiator ammonium persulfate (AMP). In this paper, continuing this trend, we have studied free-radical accession cyclohexanone to olefines . Experimental Part: Reaction addition cyclohexanone to the olefines conducted in autoclave manufactured from stainless steel. In autoclave downloaded source component cyclohexanone and initiator AMP. In the hermetically closed autoclave filed through the connections of the container calculated the quantity of ethylene . Autoclave heated to 100 ?C for 5 hours ,when the reaction was complete depending on the quantity of reacted ethylene, the pressure was reduce. The remaining unreacted ethylene removed through connections and liquid condensate separated and got 2- ethylcyclohexanone.The degree of purity alkylcyclohexanone determined to Gas Liquid Chromatography, LH-8MD. Terms of the analysis are: liquid phase 10% of the liquid phase mass ethylene glygol succenate on chrome layer, length columns 1.5 m, the temperature of the evaporator, columns and detector 200, 130 and 100 ?C respectively, the speed of Helium-gas vehicle is 45 ml/ min., IR spectra of the device was removed at the UR-20 in a solvent CCl4
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