Publisher: American Chemical Society (ACS)

Issue: 11

License:

Publication date(s): 2015/06/08 (print) 2015/02/09 (online)

Pages: 2126-2129

Volume: 34 Issue: 11

Journal: Organometallics

Link: https://pubs.acs.org/doi/pdf/10.1021/om501252m

URL: http://dx.doi.org/10.1021/om501252m

Three modes of reactivity of phenyl-substituted alkynes toward acyclic tetrelenes are reported, with reaction pathways found to be dependent not only on the nature of the group 14 element but also on the supporting ligand set. Systems featuring Sn–B or Ge–B bonds undergo insertion chemistry, forming borane-appended (vinyl)SnII and GeII species. With a bis(amido)stannylene, phenylacetylene acts as a protic acid, generating a SnII acetylide with a unique bridged structure. Reactivity toward a more strongly reducing SiII system is dominated by the possibility of accessing SiIV via [2 + 1] cycloaddition chemistry.