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6320-40-7

Articles about 6320-40-7Total 3 be found

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SYNTHESIS OF AROMATIC POLYHALOGENATED HALOMETHYL COMPOUNDS
The present invention discloses a process for the preparation of highly pure Pentabromobenzyl bromide, PBB-Br, wherein the benzylic bromination reaction is carried out in a suitable organic solvent in the presence of water and wherein the reaction temperature is such that it is sufficient to activate the initiator but not high enough to consume a substantial amount thereof.
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Page/Page column 15-16

(2010/02/15)

Deuteriodediazoniation: A general method for the replacement of a diazonium group by deuterium
Aromatic amino groups are replaced with deuterium via a diazonium salt intermediate. Dimethylformamide-d7 is the deuterium donor in this mild replacement method that yields aromatic-d1 products in high isotopic purity. The presence of methyl groups lowers the isotopic purity of the products.
Wassmundt,Kiesman
p. 281 - 288
(2007/10/02)

Efficient Catalysis of Hydrodediazoniations in Dimethylformamide
For hydrodediazoniations (the replacement of a diazo group by hydrogen) in DMF, several substances act as catalysts through their ability to serve as electron donors and initiate free-radical reactions.A general procedure has been developed in which FeSO4 speeds the conversion and leads to higher yields.Trapping experiments demonstrated the presence of free-radical intermediates.N,N-Dimethylacetamide was found to rival DMF as a source of hydrogen atoms.
Wassmundt, Frederick W.,Kiesman, William F.
p. 1713 - 1719
(2007/10/02)

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Chemical Properties

Appearance/Colour :Yellow powder
Melting Point: 68-71 °C(lit.)
Boiling Point: 290.7 °C at 760 mmHg
Flash Point:127.6 °C
Density: 2,479 g/cm³
Solubility:Chloroform (Sparingly), Methanol (Slightly)
Storage Temp.:Sealed in dry,Room Temperature
Vapor Pressure: 0.00356mmHg at 25°C
Refractive Index: 1.619
BRN: 2359313
PSA: 0.00000
LogP: 4.28250

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