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.
Outer-sphere and inner-sphere processes in reductive elimination. Direct and indirect electrochemical reduction of vicinal dibromoalkanes
作者:Doris Lexa、Jean Michel Saveant、Hans J. Schaefer、Su Khac Binh、Birgit Vering、Dan Li Wang
DOI:10.1021/ja00173a002
日期:1990.8
The reduction of vicinal dibromoalkanes is investigated as an example of the dichotomy between outer-sphere and inner-sphere processes in reductiveelimination. As a result from the analysis of the kinetic data, outer-sphere reagents such as carbon electrodes and aromatic anion radicals react with vicinal dibromoalkanes according to an «ET» mechanism in which the rate-determining step is a concerted
Brominative Deoxygenation of some aldehydes and ethers
作者:Ulrich Von Roman、Rudolf Knorr、Claudia Behringer、Jakob Ruhdorfer
DOI:10.1002/prac.19943360313
日期:——
Three aldehydes (4a-c) are transformed into 1,1-dibromides (6a-c) by 2,2,2-tribromo-2,2-dihydro-1,3,2-benzodioxaphosphole (2). This reagent (2) is also very active in the cleavage of ethers, its reactions may show some features of carbonium as well as Of S(N)2 character.
Kon, Journal of the Chemical Society, 1921, vol. 119, p. 821
作者:Kon
DOI:——
日期:——
BOGATSKIJ A. V.; DAVIDENKO T. I., DOKL. AN USSR, 1978, B, HO 2, 121-124