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495-18-1 - Benzohydroxamic acid, 98% - Benzhydroxamic acid - N-Benzoylhydroxylamine - A10509 - Alfa Aesar

A10509 Benzohydroxamic acid, 98%

Numéro de CAS
495-18-1
Synonymes
Benzhydroxamic acid
N-Benzoylhydroxylamine

Conditionnement Prix ($) Quantité Disponibilité
10g 53,70
25g 113,00
50g 208,00
250g 771,00
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Benzohydroxamic acid, 98%

MDL
MFCD00002109
EINECS
207-797-6

Propriétés chimiques

Formule
C7H7NO2
Poids moleculaire
137.14
Point de fusion
ca 125° dec.
Solubilité
Soluble in alcohol. Slightly soluble in ether. Insoluble in benzene.

Applications

Benzhydroxamic acid is used as precursor in the synthesis of novel mono-anionic and di-anionic hydroxamato complexes by reacting with BiPh3 and Bi(O(t)Bu)3, which has anti-bacterial activity against helicobacter pylori. It is used in the photometric determination of trace amounts of vanadium in alloy steels by making mixed-ligand vanadium chelates with ammonium thiocyanate. It is also involved in the palladium catalyzed synthesis of benzisoxazolones.

Notes

Store in cool place. Incompatible with strong oxidizing agents.

Références bibliographiques

Reaction with alkynes, catalyzed by NaH in DMSO, gives 2-phenyloxazoles: Can. J. Chem., 51, 1368 (1973).

Oxidation with tetraalkylammonium periodates generates the transient benzoylnitroso compound, which can react in situ with dienes to give good yields of cycloaddition products: Tetrahedron Lett., 4763 (1978); J. Chem. Soc., Perkin 1, 883, 887 (1985); J. Org. Chem., 50, 1911 (1985).

Gibson, G. E.; Kelebek, S.; Aghamirian, M.; Yu, B. Flotation of pyrochlore from low grade carbonatite gravity tailings with benzohydroxamic acid. Miner. Eng. 2015, 71, 97-104.

Yang, S.; Feng, Q.; Qiu, X.; Gao, Y.; Xie, Z. Relationship between flotation and Fe/Mn ratio of wolframite with benzohydroxamic acid and sodium oleate as collectors. Physicochem. Probl. Miner. Process. 2014, 50 (2), 747-758.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H315-H319-H341-H335

Causes skin irritation. Causes serious eye irritation. Suspected of causing genetic defects. May cause respiratory irritation.

Mentions de prudence: P201-P261-P280-P305+P351+P338-P405-P501a

Obtain special instructions before use. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Beilstein
1907585
Code tarifaire harmonisé
2924.29
TSCA
Yes
RTECS
DF9650000

Recommandé

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Catalyseurs

Analytique et matériel de laboratoire