HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Methyl 2-(2-(benzyloxy)phenyl)-3-methoxyacrylate → Methyl (2E)-2-(2-hydroxyphenyl)-3-methoxyprop-2-enoate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Methyl 2-(2-(benzyloxy)phenyl)-3-methoxyacrylate | HCID 838698 | — |
| Edukt | HCID 178418361 | HCID 178418361 | — |
| Katalysator | Palladium | HCID 23938 | — |
| Lösungsmittel | Ethyl Acetate | HCID 8857 | — |
| Produkt | Methyl (2E)-2-(2-hydroxyphenyl)-3-methoxyprop-2-enoate | HCID 14326252 | 99% |
Reaktionsschritte
(E)-Methyl 2-(2'-benzyloxyphenyl)-3-methoxyacrylate (5.44 g) was dissolved in ethyl acetate (50 ml) and 5% palladium on carbon (0.25 g) was added. The stirred mixture was hydrogenated at three atmospheres pressure, with stirring, until no more hydrogen was taken up, then filtered through celite and silica gel (50 g, Merck 60). Concentration of the filtrate under reduced pressure afforded (E)-methyl 2-(2'-hydroxyphenyl)-3-methoxyacrylate as a white crystalline solid (3.76 g; 99% yield), mp. 125°-126° C.; infrared max. (nujol mull): 3400, 1670 cm-1 ; 1H NMR (270 MHz): delta 3.80 (3H,s), 3.90 (3H,s), 6.20 (1H,s), 6.80-7.00 (2H,m), 7.10-7.30 (2H,m), 7.60 (1H,s)ppm.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05057146 |
| Quelldatensatz | uspto-grants-1991_10 |
| ORD ID | ord-1456e4d7a52841058b84cfe53a227c02 |
| Quellennotiz | uspto-grants-1991_10 |