- Short Distance Harpooning Reactions of Alkaline-Earth Atoms: LIF Study of the Mg(1S) + Cl2 Reaction
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The Mg(1S) + Cl2 reaction was studied by LIF detection of the MgCl(X2Σ+) product.The energy disposal differs markedly from that of the Ca(1S) + Cl2 and F2 reactions, and of all previously reported harpooning rea
- Bourguignon, Bernard,Gargoura, Mohammed-Ali,Rostas, Joeelle,Taieb, Guy
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- SYNTHESIS OF BORONIC ESTERS AND BORONIC ACIDS USING GRIGNARD REAGENTS
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Boronic esters and boronic acids are synthesized at ambient temperature in an ethereal solvent by the reaction of Grignard reagents with a boron-containing substrate. The boron-containing substrate may be a boronic ester such as pinacolborane, neopentylglycolborane, or a dialkylaminoborane compound such as diisopropylaminoborane. The Grignard reagents may be preformed or generated from an alkyl, alkenyl, aryl, arylalkyl, heteroaryl, vinyl, or allyl halide compound and Mg°. When the boron-containing substrate is a boronic ester, the reactions generally proceed at room temperature without added base in about 1 to 3 hours to form a boronic ester compound. When the boron-containing substrate is a dialkylaminoborane compound, the reactions generally proceed to completion at 0°C in about 1 hour to form a boronic acid compound.
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Paragraph 0123
(2013/03/26)
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- HALIDE REDUCTION DIHYDROCARBYLMAGNESIUM MIXTURES
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This invention provides a process for reducing the amount of soluble halide in a solution comprising a liquid organic medium, at least one viscosity reducing agent, at least one dihydrocarbylmagnesium compound, and an initial amount of soluble halide. The process comprises mixing at least one alkali metal with the solution at a mole ratio of alkali metal to magnesium of less than about 1:2.5, thereby forming precipitated soluble halides. Also provided by this invention is a process for reducing the amount of soluble halide in a slurry comprising a liquid organic medium, at least one viscosity reducing agent, at least one dihydrocarbylmagnesium compound, solids from the formation of said dihydrocarbylmagnesium compound, and an initial amount of soluble halide. This process comprises mixing at least one alkali metal with the slurry at a mole ratio of alkali metal to magnesium of less than about 1:1.25, thereby forming precipitated soluble halides.
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Page/Page column 21
(2008/06/13)
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- Electronic Branching in Reactions of Ca(3P,1D) and Mg(3)P with F2, Cl2 and Br2: Experiments and Global Model
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Results are reported from a systematicstudy of electronic branching in the reactions of metastable alkaline earth atoms with halogen molecules.They form chemiluminescent (CL), ionic (CI), and "dark" products.It was found that (1) the CI yields are of the
- Kowalski, Andrzej,Menzinger, Michael
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p. 1899 - 1906
(2007/10/02)
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