- Experimental and Theoretical Study of the Reaction Kinetics of 2,5-Dimethylterephthalonitrile Bromination Compared to 1,4-Dimethylbenzene Bromination
-
Experimental and theoretical studies showed the differences observed in the benzylic tetrabromination reactions in 2,5-dimethylterephthalonitrile compared to 1,4-dimethylbenzene. It was observed that the compound containing the nitrile substituent underwent a slower bromination reaction, with the formation of four intermediate compounds, while for the compound without substituents, the reaction was faster and only two intermediate compounds were observed.
- Villalba, Cibeli M. A.,De Rozada, Thiago C.,Dos Santos, Fábio S.,Scorsin, Leandro,Garcia, Jarem R.,Fiorin, Barbara C.
-
p. 1259 - 1263
(2018/03/09)
-
- Electrochemical method for the preparation of dibromomethyl, bis(bromomethyl), and bis(dibromomethyl) arenes
-
Electrochemical bromination of alkyl aromatic compounds by two-phase electrolysis yields the corresponding α,α-dibrominated products. The reaction has been carried out in a single-compartment electrochemical cell using aqueous sodium bromide (40-50%), containing a catalytic amount of HBr as electrolyte, and chloroform, containing an alkyl aromatic compound, as the organic phase with a Pt plate as anode at 10-15C. Two-phase electrolysis results in high yields (70-90%) of dibromomethyl, bis(bromomethyl), and bis(dibromomethyl) arenes, depending upon the charge passed.
- Kulangiappar,Karthik,Kulandainathan, M. Anbu
-
experimental part
p. 2304 - 2309
(2009/12/06)
-
- SYNTHESIS OF 1,1,2,2,9,9,10,10-OCTAFLUORO-PARA-CYCLOPHANE
-
1,1,2,2,9,9,10,10-Octafluoro-para-cyclophane was obtained by the pyrolysis of α,α'-di-bromo-α,α,α',α'-tetrafluoro-p-xylene using argon as the diluent with further trapping of the pyrolysis products in boiling toluene.The pyrolysis zone was filled with a copper packing to bind bromine.An efficient scheme was also developed for the preparation of α,α'-dibromo-α,α,α',α'-tetrafluoro-p-xylene starting from p-xylene.
- Grechkina, E. V.,Sochilin, V. A.,Pebalk, A. V.,Kardash, I. E.
-
p. 1663 - 1665
(2007/10/02)
-
- REACTION OF THIONYL BROMIDE WITH AROMATIC ALDEHYDES
-
Reaction of thionyl bromide with aromatic aldehydes resulted in the conversion of CHO group into CHBr2.Tolualdehyde gave the corresponding bromomethylbenzal bromides, whereas anisladehyde afforded p-anisic acid as the sole product.
- Saraf, S. D.
-
-