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acetic anhydride

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乙酸酐


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以下为句子列表:
英文: A mixture of formic acid and acetic anhydride was found to be effective for the formation of an oxazolone, which was converted to an active ester in situ in the presence of a phenol or an N-hydroxide.

中文: 实验发现甲酸和醋酐混合物对恶唑酮的生成非常有效,恶唑酮在苯酚或N-氢氧化物存在的条件下在原位转化为酯。        更详细...
英文: Acetylsalicylic acid has been synthesized using salicylic acid and acetic anhydride with microwave radiation catalyzed by aluminum chloride. The effecting factors of this method were also discussed.

中文: 摘要以水杨酸和乙酸酐为原料,以无水三氯化铝作催化剂,微波辐射合成了乙酰水杨酸,并讨论了影响反应的因素。        更详细...
英文: Hydroxyquinol triacetate was prepared from p-benzoquinone by 1,4-addition reaction with acetic anhydride and then 6,7-dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid.Then 6,7-dimethoxy coumarin was syn

中文: 对苯醌与乙酸酐经1,4-加成生成1,2,4-苯三酚三乙酸酯,然后与苹果酸反应经水解、环合反应得6,7-二羟基香豆素,再经甲基化得到6,7-二甲氧基香豆素,总收率为74.4%,整个过程反应条件温和,操作方便,适合工业生产的要求,对产品结构进行了IR和1HNMR表征。        更详细...
英文: The Government of Turkmenistan is urged to join the operation as soon as possible and to ensure that traffickers will not target its territory for use as part of a route for smuggling acetic anhydride through the region.

中文: 麻管局敦促土库曼斯坦政府尽快加入该行动,并确保贩运者不会把其领土当作通过该区域走私醋酸酐的一段路径。        更详细...
英文: The effect of the catalysts, e.g., concd. sulfuric acid, p-toluenesulfonic acid, dodecylbenzenesul-fonic acid on the esterification of starch was studied with cassava starch as the raw material, acetic anhydride as the esterifying agent and acetic acid as

中文: 摘要以木薯淀粉为原料,用醋酸酐为酯化剂,以乙酸为分散递质,探索了以浓硫酸、对甲基苯磺酸、十二烷基苯磺酸为催化剂对淀粉醋酯化反应的影响。        更详细...
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