Bromochlorination of Alkenes with Dichlorobromate (1−) Ion. IV. Regiochemistry of Bromochlorinations of Alkenes with Molecular Bromine Chloride and Dichlorobromate (1−) Ion
作者:Takeshi Negoro、Yoshitsugu Ikeda
DOI:10.1246/bcsj.59.2547
日期:1986.8
The regioselectivity of the addition of molecular bromine chloride to alkenes is dependent on both the steric and electronic effects of the alkyl substituent. In contrast, the regioselectivity of the addition of dichlorobromate (1−) ion to alkenes is controlled mainly by the steric effect of the substituent.
BiX3 as an efficient and selective reagent for the halogen exchange reaction
作者:Bernard Boyer、El Mehdi Keramane、Sèverine Arpin、Jean-Louis Montéro、Jean-Pierre Roque
DOI:10.1016/s0040-4020(98)01213-7
日期:1999.2
Bismuth halides are efficient and selective reagents in the halogenexchangereactions carried out under mild conditions. This rapid, high yield reaction proceeds mainly with retention of configuration.