B(C6F5)3-catalyzed synthesis of benzofused-siloles

Liam D. Curless, Michael J. Ingleson*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The dehydrosilylation of 2-(SiR2H)-biphenyls catalyzed by B(C6F5)3 and a weak base forms silafluorenes with H2 as the only byproduct. Attempts to extend this approach to synthesize siloles derived from 2,2′-bithiophenes and N-Me-2-Ph-indole resulted in competing reactivity, including protodesilylation. B(C6F5)3 also catalyzed the one-pot, two-step formation of silaindenes from aryl-alkynes by alkyne trans-hydrosilylation, followed by an intramolecular Sila-Friedel-Crafts reaction facilitated by a weak base.

Original languageEnglish
Pages (from-to)7241-7246
Number of pages6
Issue number24
Publication statusPublished - 22 Dec 2014


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