This reaction is thus of little use in preparating a primary amine. Secondary and tertiary am 16、ines are never made in this way. Halobenzenes do not react with ammonia or amines under similar conditions.(二)消去反應Elimination reaction鹵烷亦能進行鹵代氫的消去反應而生成烯。在烯的消去反應...
tertiary amine:三级胺 图1亲核反应的用途 问题小结Summary questions 1.本反应方程式表示卤代烷被氢氧化钠溶液水解: R-X+OH-→ROH +X- a为什么反应要在乙醇中进行? b什么是亲核试剂? c为什么这是一个取代反应? d哪一个是离去基团 e哪一个的反应最快:R-F, R-Cl,R-Br或R-I? 2.a从溴乙烷开始,什么亲...
An intramolecular cycloalkylation of fatty amines, CHNH and CHNH, with several α,ω-dihaloalkanes, viz., 1,2-dibromoethane CHBr, HCl, 1,6-dibromohexane Br(CH)Br, under PTC conditions are reported. In particular, the cycloalkylation of amine with an excess of α,ω-dihaloalkane has...
A process for preparing a haloalkane comprising: (a) contacting a haloalkane starting material with an alkene in the presence of an effective amount of a catalyst complex under conditions effective to facilitate an addition reaction and to form a product
Here, an effective enzyme immobilization strategy was developed to overcome the disadvantages of DhaA. DhaA was physically absorbed with amine-functionalized meso-cellular foam (MCF). The MCF-absorbed DhaA (MD) was intermolecularly crosslinked with 8-arm PEG N-hydroxysuccinimide ester and then ...