318035
(S)-(-)-α-甲氧基-α-(三氟甲基)苯乙酸
≥99%
别名:
(-)-MTPA, Mosher 酸
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关于此项目
线性分子式:
C6H5C(OCH3)(CF3)CO2H
化学文摘社编号:
分子量:
234.17
UNSPSC Code:
12352112
NACRES:
NA.22
PubChem Substance ID:
EC Number:
241-292-1
Beilstein/REAXYS Number:
4684048
MDL number:
Assay:
≥99%
产品名称
(S)-(-)-α-甲氧基-α-(三氟甲基)苯乙酸, ≥99%
InChI key
JJYKJUXBWFATTE-VIFPVBQESA-N
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)/t9-/m0/s1
SMILES string
CO[C@](C(O)=O)(c1ccccc1)C(F)(F)F
assay
≥99%
optical activity
[α]18/D −72°, c = 1.6 in methanol
optical purity
ee: 99% (GLC)
refractive index
n20/D 1.474 (lit.)
bp
95-97 °C/0.05 mmHg (lit.)
mp
46-49 °C (lit.)
density
1.303 g/mL at 25 °C (lit.)
functional group
carboxylic acid
ether
fluoro
phenyl
storage temp.
2-8°C
Quality Level
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General description
(S)-(-)-α-甲氧基-α-(三氟甲基)苯乙酸通常用作 Mosher 酯分析和 Mosher 酰胺分析中的衍生剂，这是基于核磁共振法分别测定仲醇和胺类化合物中手性碳中心绝对构型的方法。
Other Notes
doi:10.1038/nprot.2007.354
Packaging
无底玻璃瓶。内含物在插入的融合锥体内。
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
235.4 °F - closed cup
flash_point_c
113 °C - closed cup
ppe
dust mask type N95 (US), Eyeshields, Gloves
Mosher ester analysis for the determination of absolute configuration of stereogenic (chiral) carbinol carbons.
Hoye TR, et al.
Nature Protocols, 2(10), 2451-2458 (2007)
J Martín Torres-Valencia et al.
Phytochemical analysis : PCA, 13(6), 329-332 (2002-12-24)
A method to determine the absolute configuration of 2,3-epoxy-2-methylbutanoate ester residues in natural products is presented, based on (i) the reduction of the ester function to yield a 2-methyl-1,2-butanediol, (ii) esterification of the obtained primary alcohol with either (R)-(+)- or
Thomas R Hoye et al.
Organic letters, 12(8), 1768-1771 (2010-03-27)
The relative magnitudes of the chemical shift differences (Deltadeltas) in the two diastereomers of menthyl esters of known chiral derivatizing agents (CDAs) were compared to those of the alpha-methoxy-alpha-trifluoromethyl-1-naphthylacetyl (MTN((1))A) analogues I. Discrimination of the terminal diastereotopic methyl resonances in
Barry J Everitt et al.
Nature neuroscience, 8(11), 1481-1489 (2005-10-28)
Drug addiction is increasingly viewed as the endpoint of a series of transitions from initial drug use--when a drug is voluntarily taken because it has reinforcing, often hedonic, effects--through loss of control over this behavior, such that it becomes habitual
Giancarlo Cravotto et al.
Chirality, 16(8), 526-533 (2004-08-04)
Cyclodextrin (CD) derivatives are important selectors for analytical chiral recognition. Their enantioselectivities and chemical properties depend on ring size and on nature, number and location of substituents. This paper describes the synthesis of 6-O-TBDMS-2,3-O-methyl beta-cyclodextrins bearing in position 2 either
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