碳烯
- 与 碳烯 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It revealed that the gaseous oxygen was related to the deep oxidation of hydrocarbon, since the breakage of C-C bond in allylic intermediate didn't exist during the process of reaction. This is due to the weak ability of lattice oxygen to attack hydrocarbon molecular.
实验结果指出,烃类的深度氧化反应与气相氧的存在有关,晶格氧对烃分子中碳碳键的攻击较弱,反应中烯丙基中间体几乎不发生碳碳键的断裂。
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We have had the extensive studies on theα-acetyl-α-carbamoyl ketene--acetals and its further applications, for example, their adols condensations with aldehydes giveα-alkenoyl-α-carbamoyl ketene--acetals which can be utilized as the 1,5-bielectronic five-carbon components to react with various binucleophlilic species in a [5+1] annulation.
我们小组在以前的工作中对α-乙酰基-α-胺甲酰基二硫缩烯酮在合成中的应用进行了深入的研究,如与醛缩合生成α-烯酰基-α-胺甲酰基二硫缩烯酮,将其作为1,5-双亲电五碳合成子的[5+1]成环策略等。
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It provides a route tothe compounds which contains three functional groups, two carbon-nitrogentriple bonds and one carbon-carbon double bond. In water, metallic indiumpromotes carbon-sulfur bond coupling reaction of aromatic sulfonyl chloride withsuitable organic halides to afford sulfones. In the last chapter, metallic tin mediated allylation of aldimines with allylbromide was revealed.
第三章,我们研究了在水相介质中金属铟促进的烯丙基溴对1,1-二氰基-2-芳基乙烯的Michael加成反应,生成一个含碳碳双键和二个碳氮叁键的三官能团化合物,另外,金属铟在水介质中还可以促进芳基磺酰氯与卤代烃发生碳硫键的偶联,生成砜。
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The invention provides a method for homopolymerizing conjugated dialkene or co-polymerizing conjugated dialkene and monovinyl aromatic hydrocarbon. The method comprises the following steps: the conjugated dialkene is homopolymerized or the conjugated dialkene and the monvinyl aromatic hydrocarbon are co-polymerized randomly. The method is characterized in that at least one alkali metal alkoxide compound expressed by the formula is used as a structure regulator; in the formula, R is linear chain or branched chain alkylidene radical having 1 to 10 carbon atoms; M is alkali metal selected from Li, Na, K, Rb and Cs.
本发明提供了一种使共轭二烯烃均聚或者使共轭二烯烃与单乙烯基芳烃共聚的方法,包括在阴离子聚合条件下使共轭二烯烃进行均聚或者使共轭二烯烃与单乙烯基芳烃进行无规共聚,其特征在于采用至少一种式所示的碱金属醇盐化合物作为结构调节剂,其中R为具有1-10碳原子的直链或支链亚烷基;以及M为选自Li、Na、K、Rb和Cs的碱金属。
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The palladium-catalyzed allylation is a powerful tool for C-C, C-N, and C-O bond formation, which has been widely applied to organic chemistry.
藉由钯催化烯丙基化反应合成碳—碳键、碳—氮键和碳—氧键是非常有利的方法,主要是因为它在有机化学上广泛的应用性。
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The palladium-catalyzed allylation is a powerful tool for C-C, C-N, and C-O bond formation, which has been widely applied to organic chemistry.
而利用金属钯当作催化剂来进行烯丙基化反应,形成碳-碳键,碳-氮键和碳-氧键,在有机化学中是很广泛的合成方法。
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The 26 terpenoids in the essential oil extracted from the leaves of Phoebe faberi have been identified by GC-MS technique, such as-S--3,7,11-trimethyl-1,6,10-dodecatrien-3-ol (39.34%),β-caryophyllene (29.18%),-zingiberene (5.16%) and caryophyllene oxide (4.21%).
利用GC-MS联用技术从竹叶楠叶挥发油中鉴定了26个萜类化合物,如---3,7,11-三甲基-1,6,10-十二碳三烯-3-醇(相对含量39.34%)、β-丁香烯(29.18%)、姜烯(5.16%)和氧化丁香烯(4.21%)。
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Finally confirmed that,The thighbone and the osteoporosis morbidity is possibly connected protein 6, respectively are: The lactoferrin light chain, membrane association protein A3, the enolase, ATP gather the enzyme, the acetyl coenzyme A reductases, the myo calcium protein; The lumbar vertebra and the osteoporosis morbidity is possibly connected protein 5, respectively are: The actin, the keratin, the enolase, ATP gather the enzyme, the myosin; The thighbone and the strong bone valuable curative effect is possibly connected protein 9, respectively are: The enolase, ATP gather the enzyme, the myo-calcium protein, the creatine activating enzyme isozyme, the phosphoglyceric acid change flavor the enzyme, the myosin, the lactoferrin light chain, the pyruvic acid activating enzyme isozyme, the crown protein; The lumbar vertebra and the strong bone valuable curative effect are possibly connected protein 8, respectively are: The carbonic anhydrase, the actin, the αB-crystal protein, 3-phospho-glycerol aldehyde oxidase, the serum albumin, ATP gather the enzyme, the myosin, the enolase.
最后确认:股骨与骨质疏松发病可能相关的蛋白6个,分别为:乳铁蛋白轻链、膜联蛋白A3、烯醇化酶、ATP合酶、乙酰辅酶A还原酶、肌钙蛋白;腰椎与骨质疏松发病可能相关的蛋白5个,分别为:肌动蛋白、角蛋白、烯醇化酶、ATP合酶、肌球蛋白;股骨与强骨宝疗效可能相关的蛋白9个,分别为:烯醇化酶、ATP合酶、肌钙蛋白、肌酸激酶同工酶、磷酸甘油酸变味酶、肌球蛋白、乳铁蛋白轻链、丙酮酸激酶同工酶、冠蛋白;腰椎与强骨宝疗效可能相关的蛋白8个,分别为:碳酸酐酶、肌动蛋白、αB-晶体蛋白、3-磷酸甘油醛脱氢酶、血清白蛋白、ATP合酶、肌球蛋白、烯醇化酶。
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The experimental results for the recovery of mixed and individual alkenes
方法的准确度实验表明,烯烃单体和混合烯烃的回收率均在96.5%-101%,说明该方法可用于汽油中烯烃含量的测定,同时应用该方法可对汽油中烯烃碳数、类型分布及含量有直观而清晰的认识,可为相关的催化剂及工艺研究提供丰富且准确的组成信息。
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Topics discussed in this article includes synthesis and structures of R2M24, the reactions of its metal-metal triple bond with various reagents such as nucleophiles, carbon-carbon mu.
本文对一类重要的ⅥB族金属叁键化合物R_2M_2_4(R为环戊二烯基及类环戊二烯基)近年来的研究成果进行了综述,综述重点是这类化合物的官能团M≡M参键的化学活性,全文包括R_2M_2_4的合成及结构,M≡M叁键与亲核试剂、与碳-碳重键,与氧或与金属羰基物等试剂的反应及其应用。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。