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- Keywords DL-valine;hexachloroacetone;carbene;azomethine ylide; 关键词DL-缬氨酸;六氯丙酮;卡宾;亚胺叶立德;
- Keywords Fullerene;1;3 - Dipolar Cycloaddition;Pyrrolidine;Azomethine Ylide; 富勒烯;1;3-偶极环加成反应;吡咯烷;亚胺叶立德;
- Keywords Spiro-heterocycle;Azomethine ylide;Cycloaddition;Synthesis; 螺杂环;甲亚胺叶立德;环加成;合成;
- Keywords Spiroheterocycles;1,3-Dipolar cycloaddition;Nitrile oxide;,,,Azomethine ylide;Synthesis;Crystal Structure; 螺杂环化合物;1;3-偶极环加成;腈氧化物;甲亚胺叶立德;合成;晶体结构;
- Keywords chiral phosphine-amine ligands;azomethine ylide;cycloaddtion;aromatization; 手性膦胺配体;偶氮甲碱叶立德;芳构化;
- Keywords 1,3-Dipolar cycloaddition;Spiroheterocycles;Fused pyrimidine ring;Nitrile oxide;Azomethine ylide;Crystal structure; 偶极环加成;螺杂环化合物;稠合嘧啶环系环合物;腈氧化物;甲亚胺叶立德;单晶结构;
- azomethine ylide 偶氮甲碱叶立德
- Maggini M.Scorrano G.Prato M Addition of azomethine ylides to C60:synthesis,characterization,and functionlization of fullerene pyrrolidines 1993 朱玉兰.;曹丽
- How to choose the base used in the synthesis of arsine ylide is studied. 本文主要研究了胂叶立德合成中碱的选择。
- Azomethine H Spectrophotometric Method for Determining Boron in Humic Fertilizer is described. 本文介绍了采用甲亚胺-H酸分光光度法分析腐植酸类肥料中元素硼的方法。
- Interestingly, the stereoselectivity of ylide cyclopropanation could be controlled by the choice of the base used for the formation of ylide. 有趣的是,选择不同的碱,能够控制该叶立德环丙反应的立体化学。
- First of all, intermidates of azomethine, t-acylailine and acetochlor are synthesized and their compounds"structure is characterized. 合成出中间体甲亚胺、叔酰胺、目标产物乙草胺,并对其结构进行了表征。
- The kinetic parameters of vanadium catalytic oxidation of azomethine H by bromate have been determined by using spectrophotometric method. 以酸性介质中痕量钒催化溴酸钾氧化甲亚胺H显色反应为对象,利用光度法研究了反应的动力学参数。
- METHODS 3,4,5-trimethoxy-triphenyl benzylidene bromide phosphine salt,the important precursor of the phosphine Ylide,was synthesis from deoxidize,bromization and addition. 方法以3,4,5-三甲氧基苯甲醛为原料,经过还原、溴代、加成三步反应得到叶立德前体3,4,5-三甲氧基苄溴三苯基膦盐。
- Methods:Using bromoactate as starting material, ylide was prepared.Ylide and fullerene were used to produce the methano[C60] fullerene carboxylate and hydrolyze it. 方法:用溴乙酸乙酯制备硫叶立德,再与富勒烯[C60]制得相应的富勒烯[C60]羧酸乙酯,水解其乙酯。
- Three strategies (additive, chiral auxiliary or chiral reagent) were developed to improve the diastereoselectivity or enantioselectivity of the ylide cyclopropanation reactions. 通过添加剂、手性辅基、手性试剂等3种策略,分别控制反应的非对映选择性和对映选择性。
- Schiff base is the Types of organic compounds which contain C-N double bond of the imine or azomethine group characteristics (-RC = N-).the early research focus on Amine Schiff base reduction. 席夫碱主要是指含有碳氮双键的亚胺或甲亚胺特性基团 (-RC = N-)的一类有机化合物,早期的研究一般为缩胺类席夫碱。
- Synthesis of Arsonium Ylide's Precursors 砷叶立德前体化合物的合成
- Keywords azomethine;herbicide;tubular reactor; 甲叉苯胺;除草剂;管式反应器;
- Keywords Halocarbene;Carbonyl Ylide;Deoxygenation; 卤代卡宾;羰基叶立德;脱氧;