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

A10509 Benzohydroxamic acid, 98%

Codice CAS
495-18-1
Sinonimi
Benzhydroxamic acid
N-Benzoylhydroxylamine

Dimensioni Prezzo ($) Quantità Disponibilità
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

Proprietà chimiche

Formula
C7H7NO2
Peso formula
137.14
Punto di fusione
ca 125° dec.
Solubilità
Soluble in alcohol. Slightly soluble in ether. Insoluble in benzene.

Applicazioni

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.

Note

Store in cool place. Incompatible with strong oxidizing agents.

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H341-H335

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

Dichiarazioni precauzionali: P201-P261-P280-P305+P351+P338-P304+P340-P312a-P308+P313-P405-P403+P233-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. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF exposed or concerned: Get medical advice/attention. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
1907585
Codice tariffe armonizzato
2924.29
TSCA
Yes
RTECS
DF9650000

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