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CAS No. : | 39637-99-5 | MDL No. : | MFCD00044400 |
Formula : | C10H8ClF3O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | PAORVUMOXXAMPL-VIFPVBQESA-N |
M.W : | 252.61 | Pubchem ID : | 3080792 |
Synonyms : |
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Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P280-P305+P351+P338-P310 | UN#: | 3265 |
Hazard Statements: | H314 | Packing Group: | Ⅱ |
GHS Pictogram: |
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* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With pyridine; dmap; In dichloromethane; at 20℃; for 16h; | General procedure: To a stirred solution of the alcohol (15 mg), pyridine (0.1 mL), and 4,4-dimethylaminopyridine (1-2 crystals) in CH2Cl2 (0.5 mL) was injected (R)-MTPA chloride (25 mg) in CH2Cl2 (0.5 mL). After stirring the mixture for 16 h at room temperature, the excess pyridine was removed by purging with N2 gas, and the residue subjected to preparative thin-layer chromatography (silica gel, 10% EtOAc/hexane) to isolate the respective MTPA esters. The 1H NMR analyses were carried out with the pure samples. The MTPA esters of the racemic alcohols were also prepared as above and the diagnostic 1H NMR methoxyl resonances for them were as follows: 3b. 1H NMR: δ 3.37 and 3.50; 5b. 1H NMR: δ 3.40 and 3.49; 6b. 1H NMR: δ 3.40 and 3.48; 8b. 1H NMR: δ 3.40 and 3.49; 10b. 1H NMR: δ 3.39 and 3.48; 11b. 1H NMR: δ 3.46 and 3.59; 12b. 1H NMR: δ 3.45 and 3.59; 13b. 1H NMR: δ 3.46 and 3.56; 14b. 1H NMR: δ 3.45 and 3.55. |
A343152[ 20445-33-4 ]
(S)-3,3,3-Trifluoro-2-methoxy-2-phenylpropanoyl chloride
Reason: Optical isomers