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CAS No. : | 85117-99-3 | MDL No. : | MFCD00009897 |
Formula : | C7H5BrF2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | ONWGSWNHQZYCFK-UHFFFAOYSA-N |
M.W : | 207.02 | Pubchem ID : | 522830 |
Synonyms : |
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Signal Word: | Danger | Class: | 3,8 |
Precautionary Statements: | P210-P280-P305+P351+P338-P310 | UN#: | 2924 |
Hazard Statements: | H225-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 |
---|---|---|
7.1g | Weighing 6.10g of <strong>[436-77-1]fangchinoline</strong>,2.50 g of 2,5-difluorobenzyl bromide dissolved in DMSO 100 mL in a 500 mL three-necked flask,Then add 0.20g of sodium ethoxide, stir to boiling, and stir to react for 8h.The whole reaction of the <strong>[436-77-1]fangchinoline</strong>base was detected by HPLC, the solvent was distilled off under reduced pressure, and the solvent was evaporated under reduced pressure.Cool down to room temperature, add 20% fumaric acid (to solution pH = 7.5) and stir to boiling for 8 h.Cool down to room temperature, add 100 mL of water and extract 3 times with acetone (200 mL × 3).HPLC separates the separation and purification process of the reaction and the product,The extract was dried overnight with anhydrous Na 2 SO 4 to recover dichloromethane.The solid was dried at 60 C for 4 h to give 7.10 g of product as pale yellow powder.The desired product has the melting point: 221.5-222.8 C, TOF-HRMS: M/e (1103.1052),The molecule is C62H56O10N2F6,That is, compound III168 in Table 2. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
5.95 g | Weighing 6.10g of <strong>[436-77-1]fangchinoline</strong>,2,5-difluorobenzyl bromide 2.10g dissolved in 1,4-dioxane 100mL in a 500mL three-necked flask, then add piperidine 10mL,Stir and mix together at 70 C, and stir the reaction for 12 h.TLC detects all reactions of anti-ninoline, and the benzoic acid is neutralized to neutral.The solvent is separated by heating under reduced pressure,200g of alumina column chromatography, elution with dichloromethane-methanol (5:1), TLC tracking reaction and product separation and purification process, collecting and combining product fractions,The solvent was distilled off by a rotary evaporator at 60 C to give 5.95 g of product as pale yellow powder. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
5.75 g | With potassium carbonate; In propan-1-ol; at 98℃; for 24h; | Weighing 6.10g of <strong>[436-77-1]fangchinoline</strong>,1.40 g of potassium carbonate was dissolved in 100 mL of propanol in a 500 mL three-necked flask.Then add 2.10g of 2,5-difluorobenzyl bromide, heat and stir at 98 C, and stir the reaction for 24 h. TLC was used to detect the total reaction of <strong>[436-77-1]fangchinoline</strong>.Evaporate the solvent under reduced pressure, cool to room temperature, add 50 mL of water,Extracted three times with acetone (50mL × 3),TLC followed the separation and purification process of the reaction and the product. The extract was dried with anhydrous Na2SO4 for 8 h, and the acetone was recovered. The solid was dried at 60 C for 4 h.That is, 5.75 g of a product as a pale yellow powder. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
6.25 g | Weigh 6.10g of <strong>[436-77-1]fangchinoline</strong>, 2.10g of 2,5-difluorobenzyl bromide, dissolved in DMSO 100mL in 500mL three-necked flaskIn addition, add 1.20g of sodium ethoxide, stir to boiling, and stir the reaction for 8h. TLC is used to detect the total reaction of anti-ninoline.The solvent was distilled off under reduced pressure, cooled to room temperature, and then neutralized to pH=7.1 with 20% fumaric acid, 50 mL of water and 3 times with dichloromethane.(50mL × 3), TLC tracking reaction and product separation and purification process, the extract was dried overnight with anhydrous Na2SO4 to recover dichloroMethane, the solid was dried at 60 C for 4 h to give the product as a pale yellow powder, 6.25 g. |