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- The carbene also reacts with alcohols. 碳烯也可与醇反应。
- Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid. 由季戊醇、氢溴酸制备了二溴新戊二醇。
- Our calculations demonstrate that the mechanism of Rh(II) carbene O-H insertion is complicated. 我们的计算从理论上预测了二价铑卡宾插入到O-H,S-H键的反应机理和可能的反应路线,密度泛函计算结果表明Rh(II)-卡宾插入到O-H键的反应机理具有复杂性。
- A bromide based bactericide with 2,2 dibromo 3 nitrilopropionamide as the main agent has been developed. 研制一种以2,2-二溴-3-次氮基丙酰胺为主剂的杀菌剂。
- Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene. 关环转换反应是形成碳碳双键的重要反应之一,即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
- Our main products are: dibromo propane, allene, methanol, ethanol, benzene, acetylene, potassium bromide, bromine, etc.. 我公司主要生产产品为:二溴丙烷;丙二烯;甲醇;乙醇;苯乙炔;溴化钾;溴素等.
- Dibromo neopentyl glycol, useful as a reacting fire retardent, is suitable to make unsaturated polyester resin, bromine - containing epoxy resin,etc. 二溴新戊二醇作为一种反应型阻燃剂,适用于制造不饱和聚酯树脂、含溴环氧树脂等。
- They said(say) hydrogen proxde[hydrogen peroxide] or carben pioxide[carbamide peroxide] may also help. 他们说过氧化氢或过氧化脲也有帮助。
- Small molecular reaction include diazonium salts, initiator decompose free radicals, carbene free radicals, and nitrene free radicals. 用于改性碳纳米管的小分子自由基包括芳香偶氮盐、过氧化物分解产生的自由基、卡宾与乃春自由基等;
- Ningbo carbene is visual photographic agency specializing inwedding,photo agencies.warm and thoughtful service has always been our aim! 宁波卡宾视觉摄影机构是一家专业从事婚纱、写真摄影机构。热情周到的服务始终是我们的宗旨!
- New,sterically demanding 1,3-dialkylimidazolinium salts used as N-heterocyclic carbene precursors were synthesized and characterized. 合成并表征了一种新型的有空间需求的N-杂环卡宾前驱体1,3-二烷基咪唑啉盐。
- The effect of the solvent on bromination of 6 methoxy 2 acyl naphthalene and 2 methoxyl naphthalene with 1,3 dibromo 5,5 dimethyl hydantoin was studied. 考察了在不同极性溶剂中以 1 ,3 二溴 5,5 二甲基海因作溴化剂对溴化 6 甲氧基 2 酰基萘反应的影响。
- Based on the comparison of the various producing processes of 2,6 dibromo benzenamine, an improved process for the synthesis of 2,6 dibromo benzenamine is put forward. 对2,6二溴苯胺的生产工艺路线进行了比较,提出以对氨基苯磺酸为起始原料,经与氢氧化钡成盐,再经溴化,水解,可得2,6二溴苯胺。
- Acenaphthene as raw materials in order to tar by bromination, oxidation, condensation, and other steps of the synthesis of 4,5 - dibromo replace -1,8 - naphthalimide. 以焦油苊为原料经溴化,氧化,缩合,等步骤合成了4,5-二溴取代-1,8-萘酰亚胺。
- Lipid peroxidation was induced in wistar rat liver by carben tetrachloride (CCl 4) for studying the effect of LbL on the liver. 为观察宁夏枸杞(LbL)对大鼠肝脏的影响,用四氯化碳(CCl4)诱发大鼠肝脂质过氧化。
- The coenzyme thiamine(vitamin B1),a natural thiazolium salt,is involved in many enzymatic catalyses.Many chemists have tried to perform enzyme mimetic symmetric carbene catalysis. 模拟硫胺素辅酶的卡宾立体选择性催化剂是化学家的研究热点,对近十年来手性N-杂环卡宾在对映选择性偶姻缩合中的应用进展进行研究。
- During the sizing treatment, the influence of carben fiber surface and matrix property on the inter facial shear strength are also described. 同时也总结了上浆处理中碳纤维表面性质及树脂基体性能对复合材料层间剪切强度的影响。
- The bromination of 6 methoxy 2 propionylnaphthalene with 1,3 dibromo 5,5 dimethylhydantoin proceeded smoothly, quickly, and gave 5 bromo 6 methoxy 2 propionylnaphthalene with 98.59% yield in alcohol. 室温下;6-甲氧基-2-丙酰基萘和1;3-二溴-5;5-二甲基海因的溴化反应在醇溶剂中;反应速度快、转化率高;生成5-溴-6-甲氧基-2-丙酰基萘的收率高(98.;59
- Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides. 随后,我们发现氮杂环卡宾也可以作为一种有机小分子催化剂,分别催化各类硅试剂或酸酐对氮杂环丙烷化合物的开环。
- Since the first stable N-Heterocyclic carbene is found, there are many work done on exploring its basic chemical properties and catalysis application, in particularly the homogeneous reaction. 摘要:自第一个稳定的咪唑盐化合物被发现之后,很多相关的研究皆在探讨其基本化学特性及催化上的应用,特别是在均相的反应上。