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・ Vinyl Williams
・ Vinylacetyl-CoA Delta-isomerase
・ Vinylacetylene
・ Vinylbital
・ Vinylcyclohexene dioxide
・ Vinylcyclopropane rearrangement
・ VinylDisc
・ Vinyldithiin
・ Vinylene group
・ Vinylidene group
・ Vinylmation
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・ Vinylon
・ Vinyloop
・ Vinylphenol reductase
Vinylphosphonic acid
・ Vinylshakerz
・ Vinylsilane
・ Vinylsulfonic acid
・ Vinylz
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・ Vinzan
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Vinylphosphonic acid : ウィキペディア英語版
Vinylphosphonic acid

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Vinylphosphonic acid is an organophosphorus compound with the formula C2H3PO3H2.〔Svara, J.; Weferling, N.; Hofmann, T. "Phosphorus Compounds, Organic," In 'Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2008. .〕 It is a colorless, low-melting solid although commercial samples are often yellowish viscous liquids. It is used to prepare adhesives. As in other phosphonic acids, the phosphorus center is tetrahedral, being bonded to an organic group (vinyl in this case), two OH groups, and an oxygen.
==Preparation==
Vinylphosphonic acid can be prepared in several ways but the most common involves addition of PCl3 to acetaldehyde:〔
:PCl3 + CH3CHO → CH3CH(O)PCl3+
This adduct reacts with acetic acid:
: CH3CH(O)PCl3+ + 2 CH3CO2H → CH3CH(Cl)PO(OH)2 + 2 CH3COCl
This chloride undergoes dehydrochlorination to afford the target:
:CH3CH(Cl)PO(OH)2 → CH2=CHPO(OH)2 + HCl

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