Radical chain reactions involving 9-alkyl-9-borafluorenes
ARKIVOC(2014)
摘要
The preparation of 9-alkyl-9-borafluorenes and their use as radical precursors in chain reactions were investigated. These organoboranes were found to be excellent precursors of primary and secondary alkyl radicals. Reactions were readily initiated by traces of oxygen and efficient processes involving sulfonyl-based radical traps were discovered. Due to the very high reactivity of the intermediate 9-H and 9-alkyl-9-borafluorenes, problems of reproducibility were identified.
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关键词
Radical reaction,Lewis acidity,hydroboration,sulfurization,thiosulfonates,sulfones,sulfonyl chloride
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