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Synthesis 1996; 1996(5): 606-608
DOI: 10.1055/s-1996-4269
short paper
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Diethyl Iododifluoromethylphosphonate: A New Synthetic Method and Its Reaction with Alkynes

An-Rong Li, Qing-Yun Chen*
  • *Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, People’s Republic of China, Fax +86(21)64166128
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Publication Date:
31 December 2000 (online)

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Refluxing difluorodiiodomethane and triethyl phosphite in diethyl ether for 5 hours gave diethyl iododifluoromethylphosphonate (1) nearly quantitatively. The addition of 1 to alkynes initiated by sodium dithionate at 0°C resulted in the corresponding adducts in high yields.

difluorodiiodomethane - alkynes - diethyl iododifluoromethylphosphonate - sodium dithionite - electron transfer