- Continuous organomagnesium synthesis of organometallic compounds
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Continuous organomagnesium synthesis of a number of organic derivatives of 14th group elements of the periodic table was examined in a column apparatus with an agitator. An effect of a molar ratio of reactants, temperature in a reaction zone, and other factors was studied on the yield and composition of the products.
- Storozhenko,Grachev,Klochkov,Shiryaev
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p. 387 - 393
(2013/06/27)
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- Diorganomagnesium Compounds from Magnesium, Hydrogen, and 1-Alkenes and Their Application in Synthesis
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1-Alkenes are converted in high yields to the corresponding primary diorganomagnesium compounds by transition metal-catalyzed hydromagnesation reaction using catalytically prepared suspended (MgH2*) or dissolved magnesium hydride (MgH2').The most active hydromagnesation catalysts have been found to be combinations of zirconium tetrahalides with MgH2* or MgH2'.The reaction is highly regio- and chemoselective.The diorganomagnesium compounds prepared in situ from magnesium, hydrogen, and 1-alkenes can be applied to the synthesis of organic and organometallic compounds just as Grignard compounds (Scheme 3, reactions 3-11).Dioctylmagnesium undergoes the growth reaction with ethene in the presence of quinuclidine and is oxidized by molecular oxygen in high yield to 1-octanol. Key Words: Magnesium hydride, catalytically prepared / Hydromagnesation reactions / Magnesium, diorgano compounds, preparation from magnesium, hydrogen and 1-alkenes / Magnesium, diorgano compounds, application in syntheses / Magnesium, diorgano compounds, oxidation of
- Bogdanovic, Borislav,Bons, Peter,Konstantinovic, Stanimir,Schwickardi, Manfred,Westeppe, Uwe
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p. 1371 - 1384
(2007/10/02)
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- Reduction of bis(triorganotin) oxides by metals: An easy route to hexaorganoditins
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Bis(triorganotin) oxides have been reduced in high yield to hexaorganoditins by titanium, magnesium, potassium, and sodium.
- Jousseaume, Bernard,Chanson, Evelyne,Pereyre, Michel
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p. 1271 - 1272
(2008/10/08)
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- A NEW PREPARATION OF HEXAALKYLDITINS. 119Sn NMR AND CHROMATOGRAPHIC DATA ON LINEAR POLYTINS
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The reaction of triorganotin oxides and formic acid provides a good route to ditin derivatives.Several new linear polytin compounds have been isolated, and the vicinal and long range 119Sn-119Sn coupling constants determined.A linear relationship has been demonstrated between the logarithm of the HPLC retention time and the number of tin atoms in the compounds.
- Jousseaume, Bernard,Chanson, Evelyne,Bevilacqua, Marcel,Saux, Annie,Pereyre, Michel,et al.
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p. C41 - C45
(2007/10/02)
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- THE USE OF ORGANOSODIUM INTERMEDIATES IN THE SYNTHESIS OF ALKYLTIN CHLORIDES
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The synthesis of various RxSnCl4-x compounds (R=butyl, octyl, dodecyl) from reaction between tin(IV) chloride, or a dialkyltin dichloride, and alkylsodium compounds RNa was investigated.Optimum conditions were established and some competing side-reactions identified.
- Owen, David W.,Poller, Robert C.
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p. 173 - 178
(2007/10/02)
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- A NEW ROUTE TO TETRAORGANOTIN COMPOUNDS
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A new direct synthesis suitable for the preparation of straight-chain tetraalkyltins is described.
- Nicholson, John W.,Douek, Josephine A.,Collins, John D.
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p. 169 - 172
(2007/10/02)
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