Reactivity differences between 2,4- and 2,5-disubstituted zirconacyclopentadienes: a highly selective and general approach to 2,4-disubstituted phospholes.

Abstract : Mixtures of 2,4- and 2,5-disubstituted zirconacyclopentadienes were obtained by the reductive dimerisation of terminal alkynes using the Cp2ZrCl2/lanthanum system. Reactions of dihalophosphines with these mixtures afforded selectively the corresponding 2,4-disubstituted phospholes and 1,4-disubstituted butadienes. A new series of phospholes was characterized by multi-nuclear NMR spectroscopy and X-ray analysis. A possible explanation for the observed selectivity was obtained from X-ray studies and DFT analysis of the intermediate zirconacyclopentadienes.
Document type :
Journal articles
Complete list of metadatas

Cited literature [2 references]  Display  Hide  Download

https://hal-polytechnique.archives-ouvertes.fr/hal-00839784
Contributor : Emmanuel Nicolas <>
Submitted on : Monday, July 1, 2013 - 8:45:11 AM
Last modification on : Tuesday, July 30, 2019 - 8:26:01 AM
Long-term archiving on: Wednesday, October 2, 2013 - 4:10:41 AM

Files

full-version0904.pdf
Files produced by the author(s)

Identifiers

Citation

Guillaume Bousrez, Florian Jaroschik, Agathe Martinez, Dominique Harakat, Emmanuel Nicolas, et al.. Reactivity differences between 2,4- and 2,5-disubstituted zirconacyclopentadienes: a highly selective and general approach to 2,4-disubstituted phospholes.. Dalton Transactions, Royal Society of Chemistry, 2013, epub ahead of print. ⟨10.1039/c3dt51158h⟩. ⟨hal-00839784⟩

Share

Metrics

Record views

572

Files downloads

386