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Formation of dications bearing a S(OH) sub(2) super(+) group from long-lived 9,9-dimethyl-10 R-phenanthrenium cations in FSO sub(3)H-SbF sub(5)/SO sub(2)ClF/SO sub(2): a mechanistic study
super(1)H and super(13)C NMR studies have shown that the long-lived 9,9-dimethyl-10-R-phenanthrenium cations (R = PhC&z.tbd; C, Me, OH) generated in FSO sub(3)H-SbF sub(5)/SO sub(2)ClF/SO sub(2)/CD sub(2 )Cl sub(2) transform into long-lived 7-dihydroxysulfonio-9,9-dimethyl-10-R-phenanthrenium di...
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Published in: | RSC advances 2014-10, Vol.4 (95), p.52831-52835 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | super(1)H and super(13)C NMR studies have shown that the long-lived 9,9-dimethyl-10-R-phenanthrenium cations (R = PhC&z.tbd; C, Me, OH) generated in FSO sub(3)H-SbF sub(5)/SO sub(2)ClF/SO sub(2)/CD sub(2 )Cl sub(2) transform into long-lived 7-dihydroxysulfonio-9,9-dimethyl-10-R-phenanthrenium dications. The effect of the 10-R substituents on the reaction rate suggests that a key step in the reaction mechanism is addition of SO sub(2) to protonated phenanthrenium cations. |
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ISSN: | 2046-2069 |
DOI: | 10.1039/c4ra11673a |