成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 4'-Fluoropropiophenone
456-03-1

4'-Fluoropropiophenone synthesis

3synthesis methods
-

Yield:456-03-1 91%

Reaction Conditions:

with chlorine[2-(4,5-dihydro-1H-imidazol-2-yl)-6-methoxypyridine](pentamethylcyclopentadienyl)iridium(III) chloride;potassium hydroxide in water at 80;Schlenk technique;Inert atmosphere;

Steps:

11

In a 10 mL Schlenk tube, methanol (1.1 mmol), 4-fluorophenethyl alcohol (1.0 mmol), KOH (1.1 mmol), H2O (2.0 mL) and TC-6 (0.1 mol%) were added. Under the protection of nitrogen, heat to 80°C for reaction. After completion, it was extracted with ethyl acetate (3×5.0 mL), the organic layers were combined, dried over anhydrous magnesium sulfate, and the solvent was concentrated under reduced pressure to obtain a crude product. The crude product was purified with a mixture of ethyl acetate/petroleum ether (1/50) as the eluent and purified by silica gel chromatography to obtain a pure product with a yield of 91%.

References:

CN112047797,2020,A Location in patent:Paragraph 0141-0148

4'-Fluoropropiophenone Related Search: