Pronounced effects of substituents on the iridium-catalyzed borylation of aryl C-H bonds.
摘要:
Iridium trisboryl complexes containing bisphosphine and bipyridine ligands and pinacolate and catecholate substituents on boron are reported. A large difference in reactivity towards the borylation of C-H bonds is observed for this series of trisboryl complexes, and this difference is attributed to the electron-donating properties of the pinacolate vs. catecholate groups, and the steric and electronic properties of bipyridine vs. bisphosphine ligands.
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DOI:
10.1039/b913949d
被引量:
年份:
2009
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