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发明公开
CN101225032A 1－(2,6,6－三甲基环己3－烯基)乙酮的制备方法 无效 - 全部无效 无效申请 无效口审

1－(2,6,6－三甲基环己3－烯基)乙酮的制备方法
摘要：
本发明公布了一种有机物的制备方法，具体是指1－(2，6，6－三甲基环己－3－烯基)乙酮的制备方法。它是以4－甲基戊－3－烯－2－酮和1，3－戊二烯为原料，用无水三氯化铝为催化剂，在硝基烷烃溶剂中通过Diels－Alder反应，提纯制备而得。其中的硝基烷烃溶剂为硝基乙烷、1－硝基丙烷、2－硝基丙烷中的一种或几种组合溶剂，其用量按质量比是4－甲基戊－3－烯－2－酮的3～5倍。本发明的优点是采用硝基烷烃作溶剂，产物收率有明显提高，还有溶剂毒性小、溶解性能好、回收利用率高、产物容易分离提纯、产品香气纯正等特点。
摘要（英）：

The invention discloses a preparation method of organic compounds, in particular to 1- (2,6,6- trimethyl cyclohexyl - 3- alkenyl) ethyl ketone, which adopts 4- methyl amyl- 3- alkene - 2- alkone and 1,3- piperylenes as the raw material, with the anhydrous aluminum trichloride as the catalyst, and purifying and preparing through Diels-Alder reaction in the nitryl alkane solvent; wherein, the nitryl alkane solvent is one or several combination solvents among the nitroethane, 1- nitropropanes, and 2- nitropropanes, with a mass ratio of 3 to 5 times of 4- methyl amyl- 3- alkene -2- alkone. The preparation method of organic compounds has the advantages of using nitryl alkane as solvent, distinct enhancement of product efficiency, small solvent toxicity, good solubility, high recycling percentage, easy separation and purification of products, pure product fragrance, and other characteristics.

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