catalytic amount 中文意思是什麼

catalytic amount 解釋
催化劑量
  • catalytic : adj. 【化學】催化（的）。adv. -ically
  • amount : vi. 1. 總計，共計，合計 （to）。2. 相當于，等於。3. 成為 （to）。n. 1. 總和，總額。2. 數值，量，金額。3. 結果，效果；要旨。
  1. Abstract : aim to synthesize a new prodrug, resveratrol trinicotinate. methods in presence of lithium and a catalytic amount of naphthalene, the reaction of p - methoxybenzyl trimethylsilyl ether and 3, 5 - dimethoxylbenzaldehyde gave resveratrol after a series of translation. resveratrol trinicotinate was obtained by the reaction of resveratrol and nicotinoyl chloride hydrochloride. results a mutual prodrug resveratrol trinicotinate was designed and synthesized. conclusion a novel method for synthesis of resveratrol and resveratrol trinicotinate has been afforded. the e - isomer is selectivily obtained by dehydration of the compound 2 with khso4

    文摘:目的合成一種前藥白藜蘆醇煙酸酯.方法在金屬鋰片和催化量的萘的存在下， 3 ， 5 -二甲氧基苯甲醛與對甲氧基苯甲醇的三甲基硅醚反應經過一系列轉變得到白藜蘆醇，白藜蘆醇與煙酰氯反應得到白藜蘆醇煙酸酯.結果設計併合成了白藜蘆醇煙酸酯.結論提供了一種合成白藜蘆醇及白藜蘆醇煙酸酯的方法，採用khso4脫水可選擇性的得到反式產物
  2. A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent - free conditions

    以醛和酸酐為原料，溴化鋅為催化劑，無溶劑條件下高產率地合成了偕二酸酯（其中醛與苯甲酸酐的反應是首次報道） 。
  3. Although the amount involved is modest relative to asian savings, it is hoped that the initiative will provide some catalytic effect to the development of the asian bond market

    雖然相對亞洲的儲蓄額來說，基金的金額不算大，但希望能夠透過這個項目，刺激亞洲債務市場的發展。
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