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119-53-9 - Benzoin, 99% - 2-Hydroxy-2-phenylacetophenone - A10188 - Alfa Aesar

A10188 Benzoin, 99%

CAS-Nummer
119-53-9
Synonyme
2-Hydroxy-2-phenylacetophenone

Größe Preis ($) Menge Verfügbarkeit
250g 26,06
1000g 69,73
5000g 237,60
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Benzoin, 99%

MDL
MFCD00004496
EINECS
204-331-3

Chemische Eigenschaften

Formel
C14H12O2
Molmasse
212.25
Schmelzpunkt
131-136°
Siedepunkt
334-344°
Flammpunkt
181°(357°F)
Dichte
1.310
Löslichkeit
Soluble in chlorine. Slightly soluble in water, ethanol and ether.

Anwendungen

Benzoin is used as a flavor, antiseptic and photopolymerization catalyst. It is also used as a raw material in organic syntheses. It serves as a precursor to benzil, which is a photoinitiator. Further, it is used as degassing agent for powder coatings. In addition to this, it is used as an additive and in powder coating to remove the pinhole phenomenon.

Bemerkungen

Moisture sensitive. Incompatible with acids, acid anhydrides, acid chlorides and strong oxidizing agents.

Literaturverweise

Exclusive C-alkylation occurs with an alkyl bromide and NaOH in DMSO: Liebigs Ann. Chem., 735, 56 (1970). Borohydride reduction and periodate cleavage of the product lead to a useful synthesis of aryl ketones, with benzoin functioning as a benzoyl anion equivalent: Synthesis, 268 (1975):

This has been extended to include alkylation with other electrophiles including primary and secondary alkyl iodides and Michael acceptors, and the route shortened by direct cleavage of the alkylated benzoin with hydrogen peroxide: Synthesis, 36 (1980).

Zeng, H.; Wang, K.; Tian, Y.; Niu, Y.; Greene, L.; Hu, Z.; Lee, J. K. Reprint of “The benzoin condensation: Charge tagging of the catalyst allows for tracking by mass spectrometry”. Int. J. Mass Spectrom. 2015, 378, 169-174.

Alamgir, M.; Khuhawar, M. Y.; Memon, S. Q.; Hayat, A.; Zounr, R. A. Spectrofluorimetric analysis of famotidine in pharmaceutical preparations and biological fluids by derivatization with benzoin. Spectrochim. Acta, Part A 2015, 134, 449-452.

Weitere Referenzen

Merck
14,1093
Beilstein
391839
Harmonized Tariff Code
2914.40
TSCA
Yes
RTECS
DI1590000

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