Summary: | 碩士 === 中原大學 === 化學研究所 === 97 === Abstract
By Michael addition or nuclepohilic substitution, a series of acetylacetone derivatives can be prepared. These compounds, dissolved in sodium hydroxide underwent acyl cleavage. The acyl cleavage of acetylaceton derivatives 3 give 5-ketohexanenitrile , 4-phenylbutan-2-one ,
3-benzyl-4-phenylbutan-2-one , hex-5-en-2-one ,
3-methylcyclohexen-2-one , 3ethyl-2-cyclohexen-1-one , 1-hydroxybicyclo[3.3.1]nonan-3-one , 7-methyl-4,4a-5,6-tetrahydro-2(3H)naphthalenone , 7-ethyl-1-methyl-4,4a,5,6-tetrahydronaphthalen-2(3H)-one can also be prepaered by this method. 7-methyl-4,4a-5,6-tetrahydro-2(3H)naphthalenone can be used for augmenting or enhancing the aroma or taste of consumable material. This synthesis of 7-methyl-4,4a-5,6-tetrahydro-2(3H)naphthalenone method takes fewer steps and give good yield compand to reations method.
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