Reaktion #417270

Reaktionsgleichung

ethyl 2-(2,4,5-trifluoro-3-methylbenzoyl)acetate

ethyl orthoformate

acetic anhydride

→

title compound

Ausbeute 100.1%

Ethyl 2-(2,4,5-trifluoro-3-methylbenzoyl)-3-ethoxyacrylate

Ausbeute 100.1%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Einengenconcentrated under reduced pressure

Vorschrift

A mixture of ethyl 2-(2,4,5-trifluoro-3-methylbenzoyl)acetate (3.0 g), ethyl orthoformate (2.6 g) and acetic anhydride (2.9 g) was stirred at 87° to 93° C. for 6 hours and then concentrated under reduced pressure to give the title compound (3.65 g) as orange oil.

Quelle