Heterocyclization of cycloalkenes with di(2-pyridyl) diselenide in the presence of antimony pentachloride

2012 ◽  
Vol 48 (6) ◽  
pp. 963-968 ◽  
Author(s):  
A.V. Borisov ◽  
Zh. V. Matsulevich ◽  
V. K. Osmanov ◽  
G. N. Borisova ◽  
G. Z. Mammadova ◽  
...  
1974 ◽  
Vol 57 (2) ◽  
pp. 416-417
Author(s):  
James N Huckins ◽  
Jerome E Swanson ◽  
David L Stalling

Abstract A simple and efficient method for the perchlorination of polychlorinated biphenyls (PCBs) to decachlorobiphenyl, using antimony pentachloride, is described. Average yields of decachlorobiphenyl from 3 individual samples of Aroclors 1016 and 1254 were 85 and 104%, respectively. Bromine was identified as a contaminant in certain lots of antimony pentachloride. PCB perchlorinations with bromide-contaminated antimony pentachloride resulted in significant amounts of bromononachlorobiphenyl.


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