氯甲酸下酯 的英文怎麼說
中文拼音 [jiǎsuānxiàzhǐ]
氯甲酸下酯
英文
carbobenzoxy chloride-
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Abstract : study on the synthesis of n - methyl carbamyl chloride underdifferent ratio of input materials and the yield of the termination products methyl isocyanate. the yield is raised from 81. 89 % to 86. 23 %
文摘:研究了在其它工藝條件不變的情況下,改變光氣與甲胺的配比對合成n -甲氨基甲酰氯的影響。光氣甲胺(摩爾比)由1 35 1降至1 25 1 ,最終產物甲基異氰酸酯收率由81 89升高至86 23 。
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