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Phosphorus‐Selenium Heterocycles from the Tetraphospholane (PhP) 4 CH 2
Author(s) -
Kilian Petr,
Bhattacharyya Pravat,
Slawin Alexandra M. Z.,
Woollins J. Derek
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200390190
Subject(s) - chemistry , ring (chemistry) , selenium , salt (chemistry) , methylene , metal , crystal structure , sequence (biology) , medicinal chemistry , stereochemistry , crystallography , organic chemistry , biochemistry
Two new heterocyclic and one acyclic species were prepared by reduction/deselenation of the five‐membered heterocycle PhP(Se)CH 2 PhP(Se)Se 2 (containing a PCPSe 2 ring sequence). Deselenation with Me 3 SiCN led to the four‐membered heterocycle PhP(Se)CH 2 PPh(Se)Se (containing a PCPSe ring sequence), whereas reaction with Bu 3 P afforded the five‐membered heterocycle PhP(Se)CH 2 PhP(Se)SePPh (ring sequence PCPSeP) and reduction with K metal afforded the dipotassium salt of methylene‐bis(diselenophenylphosphinic) acid [K 2 (PhPSe 2 ) 2 CH 2 ]. The new compounds were characterised by a combination of NMR, MS and FT IR spectroscopic techniques; their structures were confirmed by single crystal X‐ray analyses. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)