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Cyanopyridine,intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87.

以4吡啶为原料,在固定床反应器中通过含氧化钒的化剂发生气固相接触氨氧化反应制备雷米封中4吡啶,4吡啶的转化率为99%,4吡啶的选择性为88%,收率为87。

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3G, 401(K), a,

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原声例句
【营】Vitamin B12

" Not only is methylcobalamin cyanide-free, but it's also significantly better absorbed, can immediately be utilized without the need for complex conversion processes, and is associated with a lower risk of side effects, " explains Dr. Berg.

“基鈷胺不僅不含氰化物，而且吸收效果顯著更好，可以立即利用，而無需複雜的轉換過程，並且與較低的副作用風險相，”博士解釋道。

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Harvardian, harvest, harvest fly, harvest moon, harvest time, harvester, harvester-decorticator, harvester-shredder, harvester-thresher, harvester-tracker,

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