156558
α-Methoxy-α-(trifluoromethyl)phenylacetic acid
97%
Sinonimo/i:
MTPA
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About This Item
Formula condensata:
C6H5C(OCH3)(CF3)CO2H
Numero CAS:
Peso molecolare:
234.17
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.22
Prodotti consigliati
Saggio
97%
Indice di rifrazione
n20/D 1.476 (lit.)
P. ebollizione
95-98 °C/0.05 mmHg (lit.)
Punto di fusione
41-46 °C (lit.)
Temperatura di conservazione
2-8°C
Stringa SMILE
COC(C(O)=O)(c1ccccc1)C(F)(F)F
InChI
1S/C10H9F3O3/c1-16-9(8(14)15,10(11,12)13)7-5-3-2-4-6-7/h2-6H,1H3,(H,14,15)
JJYKJUXBWFATTE-UHFFFAOYSA-N
Applicazioni
Diastereomeric bis-esters of (±)-trans-7,8-dihydroxy-7,8,9,10-tetrahydrobenzo[α]pyrene with MTPA has been used as a noncarcinogenic precursor to obtain the (+)and (-)-dihydrodiols by chromatographic resolution. It has also been used to develop empirically derived correlation of configuration and nmr chemical shifts for diastereomeric MTPA esters.
Avvertenze
Warning
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Organi bersaglio
Respiratory system
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
235.4 °F - closed cup
Punto d’infiammabilità (°C)
113 °C - closed cup
Dispositivi di protezione individuale
dust mask type N95 (US), Eyeshields, Gloves
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Chemical & pharmaceutical bulletin, 63(8), 608-616 (2015-08-04)
From the leaves of Meliosma lepidota ssp. squamulata, megastigmane glucosides with spiro-structures and megastigmanes were isolated. Their structures were determined by X-ray crystallographic analyses and spectroscopic investigation. The absolute structures of the megastigmanes were determined by the modified Mosher's method.
W Levin et al.
The Journal of biological chemistry, 255(19), 9067-9074 (1980-10-10)
The (+)- and (-)-enantiomers of benzo[a]pyrene 7,8-oxide are hydrated stereospecifically at C-8 to (-)- and (+)-trans-7,8-dihydroxy-7,8-dihydrobenzo[a]pyrene, respectively, by rat hepatic epoxide hydrolase. The (-)-enantiomer of benzo[a]pyrene 7,8-oxide is metabolized by microsomal epoxide hydrolase at a rate 3- to 4-fold greater
Nuclear Magnetic Resonance Enantiomer Reagents. Configurational Correlations via Nuclear Magnetic Resonance Chemical Shifts of Diastereomeric Mandelate, 0-Methylmandelate, and α-Methoxy-α-trifluoromethylphenylacetate (MTPA) Esters
Dale JA and Mosher HS
Journal of the American Chemical Society, 95(2), 512-519 (1973)
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