Journal article
A fluoroaryl substituent with spectator function: Reactivity and structures of cyclic and acyclic HF4C6-substituted phosphanes



Publication Details
Authors:
Orthaber, A.; Belaj, F.; Pietschnig, R.
Publisher:
Elsevier B.V.DO - 10.1016/j.jorganchem.2009.10.025
Publication year:
2010
Journal:
Journal of Organometallic Chemistry
Pages range:
974-980
Volume number:
695
Start page:
974
End page:
980
ISSN:
0022-328X

Abstract
The reactivity of phosphines with a fluoroaryl group (HF4C6-) carrying a spectator function in para position was explored with respect to the formation of low coordinated and P rich phosphines. Asym. diphosphene HF4C6P:PMes* (Mes* = C6H2(tBu)3-2,4,6) was identified as an intermediate in the synthesis of linear 1,3-dihydrophosphine H(HF4C6)PP(Mes*)P(Mes*)H, while the sym. diphosphene HF4C6P:PC6F4H undergoes 2+2 cycloaddn. under formation of the corresponding cyclotetraphosphetane for which a crystal structure was obtained. Attempts to synthesize HF4C6-substituted iminophosphines generally failed, which is attributed to the electronic nature of the corresponding precursors as suggested by quantum chem. calcns. [on SciFinder(R)]


Keywords
crystal mol structure cyclotetraphosphetane selenophosphorane phosphonoselenoic amide prepn, diphosphene prepn cycloaddn addn phosphine cyclotetraphosphetane phosphaalkene, optimized mol structure iminophosphine phosphonamidous fluoride chloride energy Gibbs, phosphonamidous fluoride chloride dehydrohalogenation DFT, tetrafluorobenzene reaction phosphoroamidous chloride selenium amide phosphine cycloaddn


Authors/Editors

Last updated on 2018-06-12 at 10:45