ジシクロペンタジエンを原料とするシクロペンタノンの合成

概要

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Synthesis of cyclopentanone from dicyclopentadiene was studied under various conditions. The synthetic pathways are as follows. Thermal decomposition of dicyclopentadiene. Partial hydrogenation of cyclopentadiene. Hydration of cyclopentene. Dehydrogenation of cyclopentanol. When 0.5 mol of cyclopentene was reacted with 2.5 mol of 60 wt% sulfuric acid at 40℃ for 5 hrs., the products were cyclopentanol (yield 79 mol%) and its sulfate (yield 9 mol%). Cyclopentanone (yield 65.4 mol%) was obtained when cyclopentanol was passed in vapor phase over a Cu-Zn catalyst, at 280〜300℃ and at a space velocity of 0.5. From the experimental results, it was made, clear that these reactions (Equation-1) proceeded smoothly.
明治大学の論文