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17257-71-5 - (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid, 99% - (-)-Mosher's acid - (-)-MTPA - B23117 - Alfa Aesar

B23117 (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid, 99%

CAS-Nummer
17257-71-5
Synonyme
(-)-Mosher's acid
(-)-MTPA

Größe Preis ($) Menge Verfügbarkeit
500mg 76,10
2.5g 324,00
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(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid, 99%

MDL
MFCD00064200
EINECS
241-292-1

Chemische Eigenschaften

Formel
C10H9F3O3
Molmasse
234.18
Schmelzpunkt
43-45°
Siedepunkt
105-107°/1mm
Flammpunkt
>110°(230°F)
Dichte
1.344
Sensitivität
Hygroscopic
Löslichkeit
Readily soluble in hexane, ether, THF, CH2Cl2, benzene.

Anwendungen

(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid is used as a chiral derivatizing agent, it reacts with an alcohol or amine of unknown stereochemistry to form an ester or amide. The absolute configuration of the ester or amide is then determined by proton and/or 19F NMR spectroscopy.

Bemerkungen

Hygroscopic. Store under inert gas. Store away from oxidizing agents, moisture.

Literaturverweise

Peter Wasserscheid; Andreas Bösmanna and Carsten Bolm. Synthesis and properties of ionic liquids derived from the ‘chiral pool’. Chem. Commun. 2002, (3), 200-201.

Dale E. Ward; Chung K. Rhee. A simple method for the microscale preparation of mosher's acid chloride. Tetrahedron Letters. 1991, 49 (32), 7165-7166.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Sicherheitshinweise: P261-P280a-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/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. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,6280
Beilstein
3591561
Harmonized Tariff Code
2918.99
TSCA
No

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