Abstract
Reaction of Woollins' reagent ― WR, 2,4-bis(phenyl)-1,3-diselenadiphosphetane 2,4-diselenide [{PhP(Se)(μ-Se)}2] ― with aromatic diols in refluxing toluene afforded a series of novel five- to ten-membered phosphorus-selenium heterocycles 1–10
with an O–P(Se)–O or O–P(Se)–Se–P(Se)–O or O–P(Se)–O–P(Se)–O linkage in
12–74 % isolated yields. It was found that the diphosphorus species
O–P(Se)–Se–P(Se)–O rings could be readily reduced into the
monophosphorus species O–P(Se)–O rings in almost quantitative yields via
further reaction with another equivalent of corresponding aromatic
diol. All new compounds have been characterized by IR, 1H NMR, 13C NMR, 31P NMR, 77Se
NMR, mass spectrometry and elemental analysis or accurate mass
measurement. Seven representative X-ray structures are reported.
Original language | English |
---|---|
Pages (from-to) | 2607-2615 |
Number of pages | 9 |
Journal | European Journal of Organic Chemistry |
Volume | 2010 |
Issue number | 13 |
DOIs | |
Publication status | Published - May 2010 |
Keywords
- Main group elements
- Heterocycles
- Phosphorus
- Selenium
- Organoselenium compounds
- P-SE heterocycles
- Ray crystal-structures
- Woollins reagent
- Reactivity
- (PHP(SE)(MU-SE))(2)
- Cyanamides
- Anhydride
- Compplexes