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Stereochemistry of halogen

The bromonium ion postulate, made more than 75 years ago to explain the stereochemistry of halogen addition to alkenes, is a remarkable example of deductive logic in chemistry. Arguing from experimental results, chemists were able to make a hypothesis about the intimate mechanistic details of alkene electrophilic reactions. Subsequently, strong evidence supporting the mechanism came from the work of George Olah, who prepared and studied stable... [Pg.217]

The mechanism and stereochemistry of halogenation, physical methods / 273 Dihalogenation / 276 The use of A-halo compounds / 280 The use of other reagents / 282 The oxidation of halohydrins / 283 Vinylogous a-halo ketones / 284... [Pg.269]

The issue of the role of bridged radicals in the stereochemistry of halogenation has recently been examined computationally and a new interpretation offered. The structure, rotational barriers, and for halogen atom abstraction for P-haloethyl radicals were studied. For the reactions where X=C1 or Br, the halogen atom abstraction reaction shows a preference for a trans TS. [Pg.1028]

Stereochemistry of Alkene Hydrogenation 230 6.15 Stereochemistry of Halogen Addition 250... [Pg.226]

See other pages where Stereochemistry of halogen is mentioned: [Pg.256]    [Pg.273]    [Pg.256]    [Pg.259]    [Pg.262]    [Pg.406]    [Pg.263]    [Pg.433]    [Pg.351]    [Pg.433]    [Pg.744]    [Pg.217]    [Pg.360]    [Pg.383]    [Pg.383]    [Pg.547]    [Pg.547]    [Pg.393]    [Pg.384]    [Pg.259]    [Pg.233]    [Pg.233]    [Pg.433]    [Pg.1549]    [Pg.743]    [Pg.233]    [Pg.233]    [Pg.250]    [Pg.344]    [Pg.273]    [Pg.352]    [Pg.812]    [Pg.490]    [Pg.509]    [Pg.509]   
See also in sourсe #XX -- [ Pg.533 , Pg.539 , Pg.548 , Pg.549 , Pg.550 , Pg.551 , Pg.560 , Pg.563 ]



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