Reaktion #417264

Reaktionsgleichung

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

ethyl orthoformate

acetic anhydride

→

title compound

Ausbeute 99.2%

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

Ausbeute 99.2%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Einengenconcentrated under reduced pressure

Vorschrift

A mixture of ethyl 2-(2,4,5-trifluoro-3-methylbenzoyl)acetate (5.02 g), ethyl orthoformate (4.29 g) and acetic anhydride (4.93 g) was stirred at 130° to 135° C. for 5 hours and then concentrated under reduced pressure to give the title compound (6.05 g) as red oil.

Quelle