说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 二卤代烯烃
1)  dihaloalkene
二卤代烯烃
1.
Reductive coupling reaction of trihalomethyl arenes promoted by TiCl4 - Ga gave the dehalogenated products - dihaloalkene and alkynes.
研究了在低价钛(TiCl_4-Ga)试剂作用下,α,α,α,-三卤甲基芳烃的还原偶联反应,得到了脱卤偶联产物—二卤代烯烃、炔烃。
2)  haloalkenes
卤代烯烃
1.
In this paper,the FriedelCrafts reactions of haloalkenes with aromatic hydrocarbons are reviewed briefly.
介绍了卤代烯烃与芳烃的付克氏烷基化反
3)  dihalo vinyl alkene
双卤代烯烃
4)  Ethylene halogeno-hydlrocarbor
乙烯式卤代烃
5)  Allyl halogenated hydrocarbon
烯丙式卤代烃
6)  aryl halide
卤代芳烃
1.
Ligand free Ullmann coupling reactions of aryl halides catalyzed by Pd/C were studied in O/W Triton X10 microemulsion(ME) in comparison with biphase systems.
结果表明,微乳体系中联苯收率高于两相体系;比较了在离子、非离子表面活性剂构成的不同微乳体系中的反应活性;研究了卤代芳烃在TX10 ME(O/W)中的甲酸钠、碱类型、Pd/C用量、温度等对反应的影响。
2.
Recent advances in the palladium-catalyzed Ullmann-type coupling of aryl halides in- cluding reductive coupling and oxidative coupling reactions have been reviewed.
综述了钯催化卤代芳烃Ullmann偶合反应的研究进展,其中包括钯催化还原Ullmann偶合反应和钯催化氧化Ullmann偶合反应等两部分。
3.
The reductive coupling of aryl halides to form the corresponding biaryls was effected with high selectivity in water,using formic hydrazide as a reducing agent in the presence of a catalytic amount of Pd/C.
在Pd/C催化下,以甲酰肼为还原剂,卤代芳烃通过还原偶联反应能高选择性地合成相应的联苯化合物。
补充资料:卤代-2,3-二氮杂萘
分子式:
CAS号:

性质:1-氯-2,3-二氮杂萘熔点113℃;易溶于稀酸并形成盐,如苦味酸盐(熔点135℃)。1,4-二氯-2,3-二氮杂萘熔点164℃。都可由相应的羟基化物与磷酰氯或五氯化磷作用制得。其他,如1-溴-4-羟基二氮杂萘(熔点273℃),1,4-二溴二氮杂萘(熔点162℃),1-碘-2,3-二氮杂萘(熔点78℃)。由相应的1-氯代物与恒沸点碘氢酸经短时间煮沸而制得。用作有机合成试剂。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条