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Type | HazMat fee for 500 gram (Estimated) |
Excepted Quantity | USD 0.00 |
Limited Quantity | USD 15-60 |
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CAS No. : | 1522-22-1 | MDL No. : | MFCD00000426 |
Formula : | C5H2F6O2 | Boiling Point : | - |
Linear Structure Formula : | CF3C(O)CH2COCF3 | InChI Key : | QAMFBRUWYYMMGJ-UHFFFAOYSA-N |
M.W : | 208.06 | Pubchem ID : | 73706 |
Synonyms : |
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Signal Word: | Danger | Class: | 8,3 |
Precautionary Statements: | P241-P242-P264-P270-P271-P280-P304+P340-P305+P351+P338-P310-P330-P331-P363-P370+P378-P403+P233-P405-P501 | UN#: | 2920 |
Hazard Statements: | H225-H301-H314 | Packing Group: | Ⅱ |
GHS Pictogram: |
* 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 |
---|---|---|
45% | In aq. acetate buffer; at 20℃; for 24h;pH 5.9; | General procedure: To a solution of the appropriate amino ester hydrochloride 2a?f (5.4 mmol) in acetate buffer (pH5.9) (1.5 mL) trifluoromethyl 1,3-dicarbonyl compound 1a?c (2.7 mmol) and formaldehyde 33percent aqueoussolution (11 or 40 mmol) were added. The resulting mixture was stirred for 24 h at room temperature, then itwas extracted with CH2Cl2 (3 x 10 mL) and the combined organic layers were dried over Na2SO4 andevaporated in vacuo. The product was purified by column chromatography on Kieselgel 60 (chloroform?MeOH10:0?9:1 or hexane?EtOAc 10:0?7:3). |