Synthesis of Novel Vinylic P–Se Heterocycles from Selenation of Alkynes by [PhP(Se)(μ‐Se)]
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作者:Guoxiong Hua、Yang Li、Alexandra M. Z. Slawin、J. Derek Woollins
DOI:10.1002/ejic.200601066
日期:2007.2
Eleven novel five-membered PSe2C2 heterocycles have been synthesised from [PhP(Se)(μ-Se)]2 (Woollins' reagent) and alkynes (one or two C≡C triple bonds) by insertion of a Ph(Se)PSe2 fragment into alkyne triple bonds. An unusual diselenide formed by an intramolecular cycloaddition/rearrangement is also reported. All compounds have been characterised spectroscopically and four demonstrative X-ray crystal