This is a new conceptual design for half micro-scale experiment of the preparation of bromoethane,because of when changing the quantity and adding the way of the feed stock,no any infection to the rate of production of bromoethane.

N,N-Diethylaniline was synthesized from aniline and bromoethane in C_6H_5NH_2/CTAB/C_4H_9OH/H_2O microemulsion under normal atmosphere.

The content and ingredient as well as origins of impurity in bromoethane made from dregs of bromine at a pharmaceutical manufacturer was analysed through GC and GC-MS.

Mass analyzed threshold ionization spectra of ethyl bromide;

8%,while m-aminophenol was used as material,ethyl bromide as ethyl reactant, dimethylsulfate as methyl reactant,and synthesis process was optimized by means of changing solvent and feeding appropriate phase-transfer catalyst etc.

By experiments utilizing an orthogonal design,optimum synthesis conditions were obtained as follows: in the ethyl bromide route,the molar ratio of 4-hydroxyphenylacetic acid to ethyl bromide was 1 ∶ 1.

Ethylferroene was carried out using Ethyl bromine as Alkylation agent and anhydrous aluminium chloride as catalyst by ferrocene Friedel-crafts reaction.

Diethylferroene was carried out in 1,2,3-trichloromethane using diethyl bromine as alkylation agent and anhydrous aluminium chloride as catalyst by ferrocene Friedel-crafts reaction.