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- Q380005 subject Q13279835.
- Q380005 subject Q7163432.
- Q380005 abstract "In chemistry, phosphaalkynes (IUPAC name: alkylidynephosphanes) are organophosphorus compounds that have a phosphorus-carbon triple bond.Two types of phosphaalkynes are recognized. One type of phosphaalkyne is a heavier analogue of nitriles (R-C≡N), i.e. P replaces N in a nitrile. Another type of phosphaalkyne feature pentavalent, three coordinate phosphorus. Such species can also be described as ylides or phosphinocarbenes. The phosphorus version of the isonitriles R-P+≡C−, which would be called isophosphaalkynes, has not been observed.In 1950, H. Albers reported the first indication of the existence of the parent compound of phosphaalkynes (type A), H-C≡P. This compound was identified by infrared absorption spectrometry, and its synthesis was improved by Manfred Regitz in 1987. The synthesis of the first kinetically stable phosphaalkyne, which has a tert-butyl group as a substituent R (tert-Butylphosphaacetylene), was reported in 1981 by Gerd Becker and Werner Uhl. These phosphaalkynes undergo 1,2-addition reactions and cycloadditions .In 2000, Guy Bertrand reported the first structure of the type B phosphaalkyne. Its P-C-R bond angle is 152.6 degrees, so this type of phosphaalkyne may be best described by a phosphorus vinyl ylide structure (B2).".
- Q380005 thumbnail Phosphaalkynes.png?width=300.
- Q380005 wikiPageWikiLink Q1086.
- Q380005 wikiPageWikiLink Q13279835.
- Q380005 wikiPageWikiLink Q161453.
- Q380005 wikiPageWikiLink Q177033.
- Q380005 wikiPageWikiLink Q185076.
- Q380005 wikiPageWikiLink Q192572.
- Q380005 wikiPageWikiLink Q193161.
- Q380005 wikiPageWikiLink Q212745.
- Q380005 wikiPageWikiLink Q2182492.
- Q380005 wikiPageWikiLink Q2329.
- Q380005 wikiPageWikiLink Q238156.
- Q380005 wikiPageWikiLink Q2405873.
- Q380005 wikiPageWikiLink Q333936.
- Q380005 wikiPageWikiLink Q33438.
- Q380005 wikiPageWikiLink Q419257.
- Q380005 wikiPageWikiLink Q420686.
- Q380005 wikiPageWikiLink Q421897.
- Q380005 wikiPageWikiLink Q623.
- Q380005 wikiPageWikiLink Q648591.
- Q380005 wikiPageWikiLink Q656556.
- Q380005 wikiPageWikiLink Q674.
- Q380005 wikiPageWikiLink Q70906.
- Q380005 wikiPageWikiLink Q7163432.
- Q380005 wikiPageWikiLink Q898648.
- Q380005 wikiPageWikiLink Q911331.
- Q380005 comment "In chemistry, phosphaalkynes (IUPAC name: alkylidynephosphanes) are organophosphorus compounds that have a phosphorus-carbon triple bond.Two types of phosphaalkynes are recognized. One type of phosphaalkyne is a heavier analogue of nitriles (R-C≡N), i.e. P replaces N in a nitrile. Another type of phosphaalkyne feature pentavalent, three coordinate phosphorus. Such species can also be described as ylides or phosphinocarbenes.".
- Q380005 label "Phosphaalkyne".
- Q380005 depiction Phosphaalkynes.png.