乙酰乙酸酯
- 与 乙酰乙酸酯 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Thus, 3 mol of Ethyl acetoacetate were treated with 2 mol of formaldehyde to yield 80% of I.
用2摩尔的甲醛处理3摩尔的乙酰乙酸乙酯可得到80%的I。
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L-Phenyl-3-methyl-5-pyrazoIone was synthesized by the reaction of ethyl acetoacetate and phenyl hydrazine in ethanol.
在无水乙醇的存在下,乙酰乙酸乙酯和苯肼为原料合成标题化合物。
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Dehydroacetic acid was synthesized from acetacetic ether, and the influent factors of productive rate were investigated.
研究了以乙酰乙酸乙酯为原料合成脱氢醋酸过程中,催化剂的种类、用量以及反应时间对产物得率的影响。
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With 1,4-bezenoquinone and ethyl acetoacetate as the starting materials, it had been prepared in a novel six-step procedure in overall yield of 34.6%.
以1,4-苯醌和乙酰乙酸乙酯为起始原料,经新的六步反应过程,合成阿比朵尔,总收率为34.6%。
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KF/NaZnPO4 was used as the catalyst for Michael addition reaction of ethyl acetoacetate and acrylonitrile.
以磷酸锌钠负载KF为催化剂,催化乙酰乙酸乙酯与丙烯腈进行Michael 加成反应。
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The synthesis of celery ketone from butyl aldehyde and ethyl acetoacetate was improved with higher yield by using solid superbase(K2O/γ-Al2O3) for the first time.
在正丁醛和乙酰乙酸乙酯为原料合成芹菜酮的合成过程中,对其催化方法进行改进。
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The influence of reed produced allelopathy material eathyl-2-methyl acetoacetate on respiration action, photosynthesis action and antioxidant enzymes system of Microcystis aeroginosa were studied.
研究了芦苇产生的化感物质2-甲基乙酰乙酸乙酯对铜绿微囊藻呼吸作用、光合作用和抗氧化酶体系的影响。
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The method was proved to be simple,rapid,practical and highly sensitive.It is an efficient method for the quality control of acetoacetic ester.
本法简便,快速、实用,灵敏度高,可有效地用于乙酰乙酸乙酯的质量控制。
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Methods: The model of evaluating T cell proliferation stimulated with polyclonal activators, ConA was established by vital dye carboxyl fluorescin diacetate succinmidyl ester labeling technique. The effect of a specific inhibitor for p38 MAPK, SB253580, on T cell proliferation on different doses and in different time was estimated by flow cytometry. At the same time, the percentage of proliferating T cells and proliferation index were measured by CellQuest and SPSS10.0 for Windows softwares.
以活体染料羧基荧光素乙酰乙酸琥珀酰亚胺酯染色,建立了在多克隆刺激剂刀豆蛋白A刺激下评价小鼠T细胞增殖的模型,通过流式细胞术分析p38丝裂原活化蛋白激酶的特异性抑制剂SB203580在不同剂量、不同时间对T细胞增殖的作用,并应用CellQuest和SPSS10.0 for Windows软件分析增殖细胞各代所占比例和增殖指数。
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Methyl-l, 3-oxazine-2,4-dione are prepared from ethyl acetoacetate and ethyl carbamate at 140 for 6h, catalysted by zinc acetate, giving to 48.8% yields which is 33% more than the literature value.
选用醋酸锌作催化剂,使乙酰乙酸乙酯与氨基甲酸酯在140℃反应6h,合成6-甲基-1,3-噁嗪-2,4-二酮,产率达48.8%,较文献报道值高出了33%。
- 推荐网络例句
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The objective is to subjugate and discourage the people, because that allows the elite to continue to rule unopposed.
其目的是压制和打击人民的积极性,因为这可以让实权派继续统治不会沦为反对派。
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GOD,this is the second time you vanquished me!
天啊,这是第二次你打败了我!
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So a kind of strong antagonism permeated in the relations of two countries.
所以两国这一时期的政治关系始终弥漫着一种强烈的对抗情绪。