查询词典 enolic
- 与 enolic 相关的网络例句 [注:此内容来源于网络,仅供参考]
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L. mol〓. s〓 The active site of EPC-K1 was the enolic hydroxyl group.
EPC-K1抗氧化作用的活性位点是分子中的烯醇羟基。
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The all cis-structure of the cyclizative product was found. The construction of the enolic hydroxyl structure became easier and excellent.
合成中发现环化产物为全顺式结构,烯醇式结构的建立更为简洁、高效,异丙基在较复杂的结构下实现了一步引入。
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The first part reports some new reactions of BNAH, especially the reductive cyclizations of some activated ethylenic compounds to five-membered carbocycles and a sevenmembered enolic ether ring, both of which may be useful in related areas.
详细论文的研究对象是重要的辅酶NADH的化学模型1-苄基-1,4-二氢烟酰胺。论文包括一个对近期该领域进展的综述和三部分工作。
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The crystal is monoclinic,space group 〓, the ligand coordinates to Ni acetate in the enolic form,and produces a square complex.
单晶的结构是:晶体属于单斜晶系,空间群为〓,镍原子位于平面四方形配位中心,配体分子是以内式的烯醇式向镍原子配位的。
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The results of in situ DRIFTS on propylene oxidation show that the allyl species originated from α-H abstraction of propylene were located at the wavenumbers of 1454 cm~(-1) and 1427 cm~(-1). The rate-determining step is the abstraction of an α-H abstraction from a lattice oxygen linked to a bismuth ion to form a π-allyl intermediate coordinated to a molybdenum ion. The metal-oxo group then attacks the allyl intermediate forming a σ-bonded oxygen-allyl species, which is in a rapid equilibrium with the π- bonded species. The σ-bonded species then transforms to acrolein by further abstraction of α-H. Such species as formate, carboxylate, carbonate transform to deep oxidation products. The acetone was derived from propylene by an enolic species at lower temperatures.
丙烯氧化反应体系的原位漫反射红外光谱研究结果表明,由丙烯脱氢生成的烯丙基中间物种吸收峰在1454cm~(-1)和1427cm~(-1)处;基于此提出了较完整的丙烯氧化反应网络:丙烯选择氧化生成丙烯醛主要经历丙烯脱除甲基上的一个H,生成烯丙基物种,该物种嵌氧生成σ-O络合物,脱氢得到丙烯醛前驱体,脱附生成丙烯醛;完全氧化产物是由催化剂表面上生成甲酸盐、羧酸盐、碳酸盐等形式的中间物种转化而成;较低反应温度下丙烯氧化生成丙酮,通过烯醇式中间物种氧化生成丙酮前驱体得到。
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The nature of adsorbed intermediates detected by IR are:a π-allylic intermediate;an enolic type compound formed in the presence of Bronsted acid sites;a π-boned propylene species interacting with Lewis acid sites.
nsted酸位作用形成的烯丙醇物种;异丙醇中间物种。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。