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Rhodium-Catalyzed Intramolecular C-H Silylation by Silacyclobutanes. | LitMetric

Rhodium-Catalyzed Intramolecular C-H Silylation by Silacyclobutanes.

Angew Chem Int Ed Engl

School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China.

Published: May 2016

Silacyclobutane was discovered to be an efficient C-H bond silylation reagent. Under the catalysis of Rh(I) /TMS-segphos, silacyclobutane undergoes sequential C-Si/C-H bond activations, affording a series of π-conjugated siloles in high yields and regioselectivities. The catalytic cycle was proposed to involve a rarely documented endocyclic β-hydride elimination of five-membered metallacycles, which after reductive elimination gave rise to a Si-Rh(I) species that is capable of C-H activation.

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http://dx.doi.org/10.1002/anie.201602376DOI Listing

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