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tribromure de phosphore

PBr3

chimie - iate.europa.eu
Le même genre de mécanisme est utilisé pour produire de l’acide bromique à partir des acides carboxyliques et PBr3 (de tribromure de phosphore).

The same kind of mechanism is used to produce acid bromine from carboxylic acids and PBr3 (phosphorous tribromide).

général - CCMatrix (Wikipedia + CommonCrawl)
tribromure de phosphore

phosphorus tribromide

chimie - iate.europa.eu
Ils sont préparés par réaction du trichlorure de phosphore (ou tribromure de phosphore) avec un alcool et une amine tertiaire.

They are prepared by reacting phosphorus trichloride (or phosphorus tribromide) with an alcohol and a tertiary amine.

général - CCMatrix (Wikipedia + CommonCrawl)
L'acide peut être synthétisé par traitement de l'acide carboxylique, l'alcool, ou plus pratiquement l'eau, par le tribromure de phosphore ou plus communément trichlorure de phosphore.

The acid can be synthesized hy treatment of a carboxylic acid, alcohol, or most practically water, with phosphorus tribromide or more commonly phosphorus trichloride.

général - CCMatrix (Wikipedia + CommonCrawl)
L'acide phosphoreux peut être synthétisé par traitement de l'acide carboxylique, l'alcool, ou plus pratiquement l'eau, par le tribromure de phosphore ou plus communément trichlorure de phosphore.

The acid can be synthesized hy treatment of a carboxylic acid, alcohol, or most practically water, with phosphorus tribromide or more commonly phosphorus trichloride.

général - CCMatrix (Wikipedia + CommonCrawl)
Les alcools peuvent, de même, être convertis en des groupes alkyle bromures en utilisant l' acide bromhydrique ou le tribromure de phosphore , par exemple:

Alcohols may, likewise, be converted to alkyl bromides using hydrobromic acid or phosphorus tribromide, for example:

général - CCMatrix (Wikipedia + CommonCrawl)
Les alcools peuvent, de même, être convertis en des groupes alkyle bromures en utilisant l' acide bromhydrique ou le tribromure de phosphore , par exemple:

Alcohols may likewise be converted to alkyl bromides using hydrobromic acid or phosphorus tribromide, for example:

général - CCMatrix (Wikipedia + CommonCrawl)
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Synthesis and bioactivity of some new 3-alkyl-2,4-diisopropyl-1,2,4,5-tetrahydro-benzo[e][1,3,2]-diazaphosphepine 3-sulfides/selenides... This on treatment with phosphorus tribromide (4) in the presence of TEA in dry THF to form the corresponding phosphorobromodite (5)....
général - core.ac.uk - PDF: doaj.org
Unusual behavior of 3-(dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one towards some phosphorus reagents: synthesis of novel diethyl 2-phosphonochromone, diethyl 3-phosphonopyrone and 1,3,2-oxathiaphosphinines... When enaminone 1 was also treated with phosphorus decasulfide, it was turned into 4H-thiochromene-4-thione while its treatment with phosphorus tribromide, phosphorus oxychloride, or phenylphosphonic dichloride, 4H-4-oxo-chromene was isolated in all cases....
 PDF: figshare.com
The synthesis of trisporic acids... Treatment of 56 with phosphorus tribromide gave 57, which was converted with triphenylphosphine to 58....
 PDF: hdl.handle.net
Synthesis and antioxidant properties of some novel 1,3,4,2-oxadiazaphosphepino[6,7-c]quinolinones and pyrazolo[3,4:4′,3′]quinolino[5,1-c][1,4,2]oxazaphosphinine... However, when hydrazone 2 was treated with phosphonic acid, phosphorus tribromide or phosphorus oxychloride, 3,5-dimethyl-1-phenyl-1,5-dihydro-4H-pyrazolo[4,3-c]quinolin-4-one (7) was isolated in all cases....
 PDF: figshare.com
Synthesis of geminal azido–halo compounds andα‑azidoalkyl esters from aldehydes via α‑azidoalcohols... These adducts are transformed into geminalazido–halo compounds through the reaction with phosphorus trichlorideor phosphorus tribromide, whereas α-azidoalkyl esters are isolatedafter interaction with acyl chlorides
 PDF: figshare.com

Publications scientifiques

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Hydrobromination of alkenes with pbr3/sio2: a simple and efficient regiospecific preparation of alkyl bromides... PBr3/SiO2 in dichloromethane at room temperature gave the alkyl bromides with Markovnikov regiospecificity in 50 - 100% yield and short reaction time....
général - core.ac.uk - PDF: doaj.org
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Pbr3‑mediated cyclization of 1,7-diyn-3,6-bis(propargyl carbonate)s: synthesis of 5‑bromotetracenesA newand straightforward method for the synthesis of 5-bromotetracenesthrough PBr3-mediated cyclization of 1,7-diyn-3,6-bis­(propargylcarbonate)­s has been developed....
général - core.ac.uk - PDF: figshare.com
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Is the inversion of phosphorus trihalides (pf3, pcl3, pbr3, and pi3) adiradical process?Thiswork explores possible reaction paths for the inversion ofa series of trigonal pyramidal phosphorus trihalides, PF3, PCl3, PBr3, and PI3, and it especiallyaddresses the question of whether and when the bonding of the lowest-energyspecies along the inversion paths ...
général - core.ac.uk - PDF: figshare.com
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Evaluation of electrophilic heteroaromatic substitution:synthesis of heteroaromatic-fused pyrimidine derivatives via sequentialthree-component heterocyclization...aminobenzenes,1-aminonaphthalene, 2-aminopyrazines, 5-aminopyrazoles, 3-aminopyridine,5-aminopyrimidine, 5-aminoquinoline, and 8-aminoquinoline, with formamidein the presence of PBr3....
général - core.ac.uk - PDF: figshare.com
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International journal of pharma and bio sciences v1(2)2010 synthesis and biological activity of diazaphospholo- iminophosphorane derivatives of zidovudine (azt) through staudinger reaction... Their antioxidant activitiy was greatly influenced by the presence of different bio-active groups at phosphorus
général - core.ac.uk - PDF: citeseerx.ist.psu.edu

Synonymes et termes associés français

PBr3

•

phosphore

Exemples français - anglais

de phosphore

Of phosphorus
général - eur-lex.europa.eu

méthode caséine-phosphore

casein phosphorus method
agriculture, sylviculture et pêche / chimie - iate.europa.eu


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