- Unusual aryl-aryl coupling of 6-bromo-1,2-naphthoquinone to 6,6'-dibromo-1,1',2,2'-tetrahydroxy-4,4'-binaphthyl in the presence of trialkylphosphine and water
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The reaction of 6-bromo-1,2-naphthoquinone with tri(2-cyanoethyl)phosphine or tricyclohexylphosphine leads to the unusual formation of 6,6'-dibromo-1,1',2,2'-tetrahydroxy-4,4'-binaphthyl; its structure was confirmed by NMR spectroscopy and single crystal
- Bogdanov, Andrei V.,Khasiyatullina, Nadezhda R.,Mironov, Vladimir F.,Krivolapov, Dmitry B.,Litvinov, Igor A.,Konovalov, Alexander I.
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experimental part
p. 39 - 41
(2009/07/05)
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- Alkylation of phosphine PH3 generated from red phosphorus
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The generation of phosphine PH3 by alkaline hydrolysis of red phosphorus is realized. The subsequent alkylation of PH3 by terminal alkenes and alkynes in basic media leading to the corresponding aliphatic and vinylic phosphine derivatives can occur by two-steps or one-pot reaction by a Michael-like reaction mechanism.
- Semenzin, Delphine,Etemad-Moghadam, Guita,Albouy, Dominique,Koenig, Max
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p. 3297 - 3300
(2007/10/02)
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