Novel five- to ten-membered organoselenium heterocycles from the selenation of aromatic diols
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.
Citation
Hua , G , Fuller , A , Slawin , A M Z & Woollins , J D 2010 , ' Novel five- to ten-membered organoselenium heterocycles from the selenation of aromatic diols ' , European Journal of Organic Chemistry , vol. 2010 , no. 13 , pp. 2607-2615 . https://doi.org/10.1002/ejoc.201000075
Publication
European Journal of Organic Chemistry
Status
Peer reviewed
ISSN
1434-193XType
Journal article
Description
This work is funded by the EPSRC UKCollections
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