Acetic Anhydride → HCID 12919005, compound

Participants

Reaction Steps

A solution of acetic anhydride (3.0 ml; 0.032 moles) in diethyl ether (10 ml) was added dropwise, during 10 minutes, to a stirred suspension of 2-(2,3-dimethylphenoxymethyl)-2-imidazoline (6.12 g; 0.030 mole) (prepared from O-ethyl-2,3-dimethylphenoxyacetimidate and ethylene diamine) in diethyl ether (100 ml) cooling the mixture to keep its temperature below 20° C. After stirring for 2 hours the reaction mixture was filtered and the precipitate recrystallised from acetone to yield white crystals of 2-(2,3-dimethylphenoxymethyl)-1-acetyl-2-imidazoline, m.p. 127°-130° C. Analysis: Calculated C 68.27, H 7.37, N 11.37% Found: C 68.13, H 7.44, N 11.13%.

Provenance & Evidence