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Synlett 1990; 1990(3): 171-172
DOI: 10.1055/s-1990-21026
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A Simplified Version of the Phospha-Wittig Synthesis of P=C Double Bonds from Carbonyl Compounds

Pascal Le Floch* , François Mathey
  • *Laboratoire de Chimie du Phosphore et des Métaux de Transition, DCPH, Ecole Polytechnique, 91128 Palaiseau Cedex, France
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Publication Date:
08 March 2002 (online)

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Dichlorophosphine complexes M-P(R)Cl2 [M = Fe(CO)4, Cr(CO)5, W(CO)5] are reduced by tributylphosphine and zinc in tetrahydrofuran to give the corresponding phospha-Wittig reagents M-P(R)=PBu3. These species convert aldehydes R1CHO into phosphaalkene complexes M-P(R)=CHR1.