Progress in the Synthesis of Nitrogen-Containing Heterocycles by Intramolecular Cyclization of Alkynes 炔烃分子内环化反应合成含氮杂环化合物的研究进展
Beta-perfluoroalkyltetraarylporphyrins: Synthesis and Intramolecular Cyclization Reactions β氟烷基四芳基卟啉的合成及其分子内环化反应
IR Spectra of Ternary Complexes of Lanthanides-β-Diketone-8-Hydroxyquinoline Beta-perfluoroalkyltetraarylporphyrins: Synthesis and Intramolecular Cyclization Reactions 镧系-β-二酮-8-羟基喹啉三元固态络合物的红外光谱β氟烷基四芳基卟啉的合成及其分子内环化反应
Intramolecular Cyclization Reactions of Ethylenic Radical 烯基自由基的分子内环化反应
The Effect of Intramolecular Cyclization on Curing Region(ⅱ) A_a B_b, C_c Type of Polycondensation 分子内环化反应对凝胶化范围的影响(Ⅱ)AaBb,Cc型缩聚反应
In this paper, a new approach to the study of polymerization of silicic acid in aqueous solution is described in terms of the statistical theory of polymeric reaction involving intramolecular cyclization. 用高分子反应统计理论研究了硅酸聚合反应。
The intramolecular cyclization occurred with the catalysis of palladium dichloride after α-alkylation of acetylacetone O-methyloxime with 1,4-dibromo-2-butene, and corresponding dihydropyrrole was obtained in two steps. 乙酰丙酮O-甲基肟与1,4-二溴-2-丁烯进行α位烷基化反应后在氯化钯的催化下进行分子内环合反应,两步生成了二氢吡咯衍生物。
Study on the phase transfer catalytic intramolecular cyclization reaction of γ chlorobutyric ester γ-氯丁酸酯相转移催化内环化反应新工艺研究
Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed. 综述了二碘化钐在分子内环化反应中的应用。
This paper reports the effect of intramolecular cyclization reaction and proposes a new theoretical model and method, evaluates the modified sol-gel distribution theory including all parameters of reaction. 本文考虑了分子内环化反应对溶胶凝胶分配的影响,用新的方法推导了包含各种反应参数的理论方程。
Study on Stabilization of Salithion Synthesis of the Salithion Utilizing Intramolecular Cyclization Reactions 用分子内环化反应合成蔬果磷的研究
The experimental results indicate that the intramolecular cycloaddition is regioselective and the cyclization products are found to be 2 and 3 in roughly 2:1 ratio ( total yield 80%). 1的热化学环加成反应具有区域选择性,加成物2和3的摩尔比约为2∶1(总产率80%)。
Influences of Intramolecular Cyclization on PVA Crosslinked System PREPARATION OF CYCLIZED POLYISOPRENE 分子内环化对聚乙烯醇交联体系的影响环化聚异戊二烯的制备
Simulation demonstrated that intramolecular cyclization and steric hindrance play crucial influences on molecular parameters such as molecular weight, polydispersity index. The A2+ B3 system has high gelation sensitivity to the concentration and feed ratio of monomers and reactivity of functional groups. 模拟证明了分子内成环与空间位阻对聚合体系的分子量,多分散指数等的影响,凝胶点与单体浓度、单体摩尔比与官能团活性有强依赖性。
The 3D bond fluctuation model easily introducing the basic spacial elements, such as molecular diffusion, polymer chain relaxation and intramolecular cyclization, has ability to simulate nonideal hyperbranched polymerization. 三维键涨落模型能够引入分子扩散、高分子链松弛、分子内成环等空间效应,具有模拟非理想超支化聚合反应的能力。
This tandem reaction proceeds in high efficiency through nucleophilic addition, silyl enol ether formation, substitution, reduction, and intramolecular nucleophilic cyclization. 该串联反应包含了亲核加成、烯醇硅醚的形成、取代还原以及分子内的环化反应。
A copper-catalyzed intramolecular enyne cyclization reaction was occurred using oxygen as oxidant to synthesize a series of quinoline derivatives. 2. 第四部分:钯铜催化的分子内的串联环化氧化反应1.铜催化的氧气作为氧化剂发生分子内的烯炔环化反应,合成一系列喹啉衍生物。
The current preparing methods of cyclic polymer are the intramolecular cyclization of the telechelic polymer in dilute solution. 当前环型聚合物的制备方法主要采用高稀释条件下遥爪聚合物的分子内闭环反应。