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CAS No. : | 602-09-5 | MDL No. : | MFCD00004068 |
Formula : | C20H14O2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | PPTXVXKCQZKFBN-UHFFFAOYSA-N |
M.W : | 286.32 | Pubchem ID : | 11762 |
Synonyms : |
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Signal Word: | Danger | Class: | 6.1 |
Precautionary Statements: | P301+P310+P330-P302+P352-P305+P351+P338 | UN#: | 2811 |
Hazard Statements: | H301-H315-H319 | Packing Group: | Ⅲ |
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 |
---|---|---|
74% | With triethylamine; In dichloromethane; at 0 - 20℃; for 3h;Inert atmosphere; | Example 2 BINOL-Menthyl Carbonate Coupling To a flame-dried 50 mL 3-neck flask was added 0.35 mmol of (R)-menthyl chloroformate. The flask was evacuated and backfilled with N2 three times, and submerged in an ice bath. 5 mL of a 0.07 M solution of racemic BINOL (0.35 mmol) in anhydrous dichloromethane (DCM) was cooled to 0 C. in an ice bath, and added via syringe to the flask under positive N2 pressure. 0.121 mL of TEA was then added to the reaction flask. The mixture was stirred under N2 and allowed to return to room temperature over 3 hours. The reaction was quenched with 5 mL of 1M HCl, stirred for 15 minutes, and extracted three times with DCM. The organic layer was then washed with brine, and dried over Na2SO4. Liquid was removed under vacuum to yield a pale waxy solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
43% | With potassium tert-butylate; In water; for 6h;pH 13;Inert atmosphere; Irradiation; | General procedure: The following procedure is representative of all the photoinduced reactions. The reactions were carried out in a 50-mL three-neck round-bottomed flask equipped with a nitrogen inlet and magnetic stirrer. To 5 mL of degassed water (using a water vacuum pump), potassium t-butoxide (44.6 mg, 0.398 mmol) or KOH (33.4 mg, 0.596 mmol) was added. After total dissolution of the base, 2-naphthol (42.9 mg, 0.298 mmol) was added and the mixture stirred for 5 min, and then 4 (28.2 mg, 0.108 mmol) was added. The reaction mixture was irradiated for 360 min. Irradiation was conducted in a reactor equipped with two Philips HPI-T 400-W lamps (λ ≥ 350 nm, cooled with water) or with an LED lamp (LED Lustrous Colour Xnes lamp, λ= 400 ± 20 nm, 9.4 V, 1050 mA) (see Reactors section in the Supplementary Material). After that, the reaction was stopped by adding an excess of ammonium nitrate and 10 mL of water. The crude was then extracted with ethyl acetate; the organic layer was dried over Na2SO4, filtered, and vacuum-concentrated. Products were isolated using column chromatography (pentane/acetone 80/20). The halide ion concentration in the aqueous solution was determined by potentiometric titration. Dark reactions were carried out by covering the vessel with aluminium foil before degasification. |