Cyclopropane相关论文
为了探索具有新型骨架的抗癌剂,设计了一系列的以环丙烷限制构象的双酰胺类化合物.大多数含有顺式环丙烷中心的外消旋体对四种肿瘤......
Lewis Acids Promoted Formal Intramolecular [3+2] Parallel and Cross Cycloadditions of Cyclopropane 1
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Molecular Diversity of Cycloaddition Reactions of the Functionalized Pyridinium Salts with 3-Phenacy
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Diastereoselective Intermolecular [3+2] Cycloaddition of 1-(1-Alkynyl)Cyclopropyl Ketones with Elect
Since being introduced by Schmalz et al,1 alkynylcyclopropane(ACP)ketone has recently been proved to be a versatile buil......
FeCl3-Catalyzed Domino Reactions of Cyclopropanes for the Synthesis of Multi-substituted Pyrrole Der
This paper presents an alternative route to multi-substituted pyrrole derivatives from readily available doubly activate......
Intramolecular Cross-Cycloadditons of Cyclopropane 1,1-diesters for Construction of Bridged and Medi
Bridged and medium-sized skeletons constitute the basic ones of many important biologically active natural products.......
Synthesis and Crystal Structure of 2-(Diphenylphosphine oxide)-3-(diphenylphosphine oxide ethynyl) s
The Diels-Alder reaction of bis(diphenylphosphine oxide)butadiyne (BDPPOB) with spiro[2.4]hepta-4,6-diene affords the t......
目的设计合成新型缩氨基脲类化合物,探讨结构中同时含有海因和缩氨基脲片段时其抗癫痫和抗肿瘤活性。方法依据拼合原理,将具有抗癫......
本文通过对荣华二采区10...
本文通过对荣华二采区10...
K2CO3-Promoted Cascade MichaeI-Alkylation Reactions: A Facile Preparation of Diethyl trans-2,3-Disub
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Stereoselective Synthesis of Polysubstituted Cyclopropanes from Poly(ethylene glycol)Supported Pyrid
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
使用Gaussian94程序包和密度泛函方法(DFT)B3LYP以及从头算方法MP2在B3LYP／6-311++G**基组水平上,对4种三元杂环化合物环丙烷、环氧......
Two new optically active trans-2-aminocyclopropanecarboxylic esters (β-ACCs) of optical purity 91%-96% were concisely s......
Stereoselective Synthesis of Polysubstituted Cyclopropanes from Poly(ethylene glycol)Supported Pyrid
Polysubstituted cyclopropanes were efficiently prepared with poly(ethylene glycol)(PEG)as soluble support.The reaction o......
设计合成了2个刚性很强的结构对称性巴比妥酸类化合物——环丙基螺环硫巴比妥酸化合物。通过红外、核磁对其结构进行了表征。其中......
采用密度泛函理论研究了吸附在铜表面的环丙烷的解离吸附过程，环丙烷在大约10eV能量的照射下被激发到第一激发态，处于激发态的分子与......
研究了非共轭的烯丙基苯在氯化钯催化剂下重排为环丙烷衍生物的方法,讨论了溶剂、催化剂和不同反应物对反应的重排模式、产物种类......
环丙烷已被有机化学家们广泛的应用于构筑多元碳环以及多元杂环的合成中,通常采用的是过渡金属或者过渡金属衍生的配体作为催化剂......
比较1,1-双(2-叔丁基砜乙基)十二烷基苯基砜(1)双碳负离子在不同条件下的环合反应结果.控制反应条件,在铁催化下可以生成偶联烯烃......
具有环丙结构的化合物有好的活性，在生物医药行业具有广泛的应用。在不同催化剂条件下进行了烯键环丙烷化合物的合成实验，实验结果为......
<正> 小环化合物由于其张力、构型、构象和各向异性效应等原因,环碳上质子化学位移缺乏规律性,难以预测,对此作者曾提出一种近似算......
以L-焦谷氨酸为原料经六步反应得到了沙格列汀关键中间体（1S,3S,5S）-2-氮杂二环[3.1.0]己烷-3-甲酰胺甲烷磺酸盐,中间体再与（S）-N-Boc-......
A facile and convenient one-pot synthesis method of substituted cyclopropanes in water has been developed.A series of 1,......
本文报道了由碲盐和杂环取代查尔酮反应合成杂环取代环丙烷衍生物的简便方法。...
绅盐1以碳酸钾为碱分别与含对三氟甲基苯基及双吸电子基团的烯烃2或3反应，高产率、高立体选择性地合成了含对三氟甲基苯基的顺-1，2-......
通过对RC270、R600a及R134a三种制冷剂热力性能的理论研究,对比分析表明RC270的单位容积制冷量比R600a大144.5%,比R134a大33.8%,其......
提出了用Hellmann-Feynman静电力描述分子轨道成键能力的方法,从能量梯度和静电力两种观点论述了分子轨道对化学键的作用。H-F力的......
光纯净 91%-96% 的二新光学地活跃的 trans-2-aminocyclopropanecarboxylic 酉旨(beta-ACCs ) 简明地经由 ozonization 被综合，氧化......
A new 1,2,4-triazole containing cyclopropane moiety was synthesized and characte- rized by 1H NMR, MS and elemental anal......
Theoretical Exploration on Structural Stabilities and Detonation Properties of Nitrimino Substituted
The packed density, detonation velocities, and detonation pressures of a series of cyclopropane derivatives were investi......
Trans-1,2-bis(2’-(5 ’-phenyl-1 ’,3’,4’-oxadiazolyl)) cyclopropane (BDCP) and its eleven substituted novel derivativ......
Trans-1,2-bis(2’-(5 ’-phenyl-1 ’,3’,4’-oxadiazolyl)) cyclopropane (BDCP) and its eleven substituted novel derivativ......
