Facile, Catalytic Dehydrocoupling of Phosphines Using β-Diketiminate Iron(II) Complexes
Catalytic dehydrocoupling of primary and secondary phosphines has been achieved for the first time using an iron pre‐catalyst. The reaction proceeds under mild reaction conditions and is successful with a range of diarylphosphines. A proton acceptor is not needed for the transformation to take place...
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Published in | Chemistry : a European journal Vol. 21; no. 45; pp. 15960 - 15963 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
02.11.2015
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Catalytic dehydrocoupling of primary and secondary phosphines has been achieved for the first time using an iron pre‐catalyst. The reaction proceeds under mild reaction conditions and is successful with a range of diarylphosphines. A proton acceptor is not needed for the transformation to take place, but addition of 1‐hexene does allow for turnover at 50 °C. The catalytic system developed also facilitates the dehydrocoupling of phenylphosphane and dicyclohexylphosphane. A change in solvent switches off dehydrocoupling to allow hydrophosphination of alkenes.
Fe, Fi, Fo, phosphorus! Use of iron(II) β‐diketiminate complexes leads to the dehydrocoupling (DHC) of phosphines. Preliminary mechanistic studies reveal that a radical mechanism is operating, whereas a change in solvent results in a vast change in reactivity, switching off DHC and allowing hydrophosphination to take place. |
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Bibliography: | University of Bath istex:758DA5C9C17FF9478D49305B5C6E772151CAB179 ArticleID:CHEM201503399 ark:/67375/WNG-XNFT6WQ5-7 EPSRC - No. EP/M019810/1 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0947-6539 1521-3765 |
DOI: | 10.1002/chem.201503399 |