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CAS No. : | 3618-04-0 | MDL No. : | MFCD16295187 |
Formula : | C9H16O3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | BZKQJSLASWRDNE-UHFFFAOYSA-N |
M.W : | 172.22 | Pubchem ID : | 86973 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
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 |
---|---|---|
18% | With potassium tert-butylate; In tetrahydrofuran; at 5 - 20℃; for 1h; | Potassium tert-butoxide (3.95g, 35.2mmol) was added to a stirred solution of ethyl 4- hydroxycyclohexanecarboxylate (3.03g, 17.6mmol) and <strong>[456-24-6]2-fluoro-5-nitropyridine</strong> (2.5g, 17.6mmol) in THF (4OmL) under nitrogen at 5°C. The reaction mixture was allowed to warm to ambient temperature and stirred for Ih. The mixture was then quenched with water (10OmL) and extracted with ethyl acetate (2 x 100 mL) and the organics washed with water (10OmL). The organic phase was dried (MgSO4) and solvent removed in vacuo. The crude product was purified by flash silica chromatography, eluting with 0 to 30percent ethyl acetate in isohexane to afford the title compound as a yellow oil (907mg, 18percent). 1R NMR (400 MHz, CDCl3) deltal.28 (3H, m), 1.51 -2.5 (1OH, m), 4.15 (2H, m), 5.10 - 5.4 (IH, m), 6.78 (IH, m), 8.32 (IH, m), 9.05 (IH, d). m/z 294.9 (M+H)+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With (carbonyl)chloro(hydrido)tris(triphenylphosphine)ruthenium(II); ammonia; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; In tert-Amyl alcohol; at 130℃; for 20h;Inert atmosphere; Cooling; | Example 6Direct Single-Stage Amination of Alcohols andHydroxy Acids by Means of Ammonia Over aHomogeneous Ruthenium Catalyst and Xantphos ata high V7J Vgas (according to the invention)Under an argon atmosphere, m g of starting material, mRU g of [carbonylchlorohydridotris(triphenylphosphane)ruthenium(II)] and mp g of 9,9-dimethyl-4,5-bis (diphenylphosphino)xanthene as catalyst and V07 ml of 2-methyl-2-butanol as solvent were introduced into a 50 mlsteel tube. The vessel was closed, pressurized three times with 20 bar of argon and depressurized each time. The vessel was then cooled by means of dry ice and m g of ammonia were condensed in. The reactor is heated to T C. and maintained at this temperature for 20 hours. Afier cooling to room temperature, the reactor was depressurized and opened, the solvent was removed on a rotary evaporator and the residue was dissolved in methanol and then analysed by gas chromatography. Reaction parameters and conversions and selectivities to the desired reaction product are shown in Tab. 5. The results show that many different hydroxy-thnctionalized substrates can be aminated by the method described. |
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