Phloroglucinol → 2-Methoxy-1-(2,4,6-trihydroxyphenyl)ethanone

Beteiligte Stoffe

Reaktionsschritte

Phloroglucinol (35.1 g, 279 mmol) was dissolved into ethyl ether (500 mL) solution, followed by zinc chloride (8 g, 59 mmol) and 2-methoxy acetonitrile (18 g, 253 mmol) added in the solution under ice water bath condition. Dry HCl gas was bubbled into the reaction mixture, vigorously stirring for 5 hours, and precipitate was formed. The precipitate was filtered and collected, followed by dissolved into water and refluxed for 3 hours. After cooling, pink precipitate was collected, and desired white compound can be obtained after recrystallization with water. (45 g, yield 81%) 1HNMR (400 MHz, DMSO-d6): δ=12.14 (s, 2H), 10.41 (s, 1H), 5.79 (s, 2H), 4.56 (s, 2H), 3.32 (s, 3H).

Herkunft & Nachweise