Such adducts may be of interest upon considering reactions of the electrophilic substitution in benzenes bearing acceptor groups and azines. The acquired results generally confirm the mechanism accepted commonly for the electrophilic aromatic substitution....
Kinetics and mechanism of the bromination of phenols and phenoxide ions in aqueous solution. Diffusion-controlled rates ChemInformTee, O. S.; Paventi, M.; Bennett, J. M. Kinetics and Mechanism of the Bromination of Phenols and Phenoxide Ions in Aqueous Solution. ... OS Tee,M Paventi,JM ...
For instance, here are the products of its reaction with toluene, and also isopropylbenzene. Note that ONLY the benzylic carbon is brominated. Everything else is left alone! The mechanism of benzylic bromination is essentially identical to allylic bromination, with initiation, propagation, and ...
This new method of bromination has two main advan tages over conventional brominations, (1) a higher pro portion of the ortho brominated isomer is obtained from a substituted benzene than is ordinarily found when ele mental bromine is used, and (2) essentially all of the bromine consumed in ...
Bromination of Hydrocarbons. I. Photochemical and Thermal Bromination of Methane and Methyl Bromine. Carbon‐Hydrogen Bond Strength in Methane The photochemical bromination of methane was studied in the temperature range 423–503°K and found to proceed through the following chain mechanism:(1)Br2......
The electrochemical bromination of benzene, toluene and p-xylene has been investigated in acetonitrile; even if the mechanism was found to be somewhat similar to that postulated in a previous paper for acetic acid as the solvent, the yields of the brominated products in this case are near to ...
Synthesis and Testing of 2-Deoxy-2,2-Dihaloglycosides as Mechanism-Based Inhibitors of α-Glycosidases The synthesis of a series of 2-deoxy-2,2-dihaloglycosyl halides as potential α-glycosidase inactivators has been achieved via the halogenation of protecte... Ran,Zhang,John,... - 《Journ...
The intramolecular selectivity in a variety of side-chain halogenations of alkyl-aromatics has been determined in AcOH by measuring the isomeric distributi... E Baciocchi,M Crescenzi - 《Tetrahedron》 被引量: 35发表: 1989年 Selectivity and mechanism in the side-chain halogenation of methylbenzenes...
Sykes [86] described the mechanism of this reaction for the case of α,β-dibromo-substituted carboxylic acids. The presence of a double bond in this compound leads to the addition of HOCl, and 1-hydroxy-2,2-dichloroethylbenzene becomes the dominant product (~50% of the total organic ...
The reaction proceeded smoothly and cleanly to give the bromoamines in good to excellent yields (78-99%) within 24 h in CH(2)Cl(2) at room temperature without protection of inert gases. A possible mechanism involving a nucleophilic conjugate addition was proposed....