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CAS No. : | 766-98-3 | MDL No. : | MFCD00168823 |
Formula : | C8H5F | Boiling Point : | - |
Linear Structure Formula : | F(C6H4)C2H | InChI Key : | QXSWHQGIEKUBAS-UHFFFAOYSA-N |
M.W : | 120.12 | Pubchem ID : | 522627 |
Synonyms : |
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Signal Word: | Danger | Class: | 4.1 |
Precautionary Statements: | P210-P261 | UN#: | 1325 |
Hazard Statements: | H228-H315-H319-H335 | 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 |
---|---|---|
With N-[3-(trimethoxysilyl)propyl]-N.N.N-trimethylammonium chloride; tetraethoxy orthosilicate; cetyltrimethylammonim bromide; sodium 4-dodecylbenzenesulfonate; In methanol; propan-1-ol; water; at 60℃; for 1.0h; | General procedure: The above microemulsion of the substrate, together with immobilized rhodium catalyst (15mg RhCl3), were placed in either an autoclave or in a pressure vessel and heated with stirring to the desired temperature for the required length of time. The reaction vessel was cooled to room temperature and the mixture was filtered. The filtrate was treated with NaCl (2g), which caused the mixture to separate into two phases. The sol-gel material, as well as the aqueous layer, were extracted with CH2Cl2 (2× 10ml) to ensure complete removal of the products. The combined organic solutions were dried (MgSO4), concentrated and analyzed both by GC and 1H NMR and compared with authentic samples. The heterogenized catalyst was dried at 80C and 0.1Torr for 5h in order to be ready for use in the next run. | |
With C15H23Cl2FeN3; ethylmagnesium bromide; In tetrahydrofuran; at 20℃; for 16.0h;Inert atmosphere; Glovebox; Sealed tube; | General procedure: To a stirred solution of catalyst 1 in THF (1mL), alkyne (0.5mmol) and then EtMgBr (11mol%, 1M in THF) was charged in PTFE screw-capped reaction vial equipped with a stirrer bar inside the glovebox. Then, the reaction mixture was brought outside and stirred at room temperature. Progress of the reaction was monitored by GC, which indicated the completion of the reaction in specified time. The reaction mixture was quenched by exposing it to the open atmosphere. The solvent was evaporated under reduced pressure and the residue was purified by column chromatography to provide cyclotrimerized product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
47% | With indium(III) chloride; In toluene;Inert atmosphere; Reflux; | General procedure: Acetal (1.2 mmol), alkyne (1.2 mmol), dibenzylamine (0.192 mL,1.0 mmol), and InCl3 (10 molpercent) were added to a flask (25 mL), followedby the addition of toluene (2.0 mL) under argon. The mixture was stirredunder reflux and monitored by TLC. The solution was then cooled to r.t.,diluted with dichloromethane (5.0 mL), washed with brine. The aqueouslayer was extracted with CH2Cl2 (3 × 10 mL), the combined organic layer was dried over MgSO4, filtered, and evaporated under vacuum. Theresidue was purified by column chromatography on silica gel (petroleumether) to afford the desired product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine; In N,N-dimethyl-formamide; at 50 - 80℃;Inert atmosphere; | <strong>[1147-23-5]5-<strong>[1147-23-5]iodocytidine</strong></strong> (0.48 g, 2 mol) was added to 100 ml of the reaction tube under nitrogen atmosphere,4-fluorophenylacetylene (0.36 g, 3 mol),Bis triphenylphosphine palladium dichloride (0.03g, 0.1mmol),Cuprous iodide (0.03 g, 0.12 mmol), 35 ml of triethylamine and 15 ml of N, N-dimethylformamide were reacted at 50 to 80 C for 6 to 10 hours.The solvent was removed in vacuo, diluted with 30 ml of methanol, and the insoluble solid was removed by filtration. Silica gel was added and the solvent was removed by rotary evaporation. The solvent was washed with methanol / methylene chloride to give 0.35 g of nucleoside derivative 2 (brownish solid) For 73%. |