In our hands Bertram's procedure for the preparation of esters of aconityl anil26 did not lead to the isolation of the products sought. However, when, after esterification is complete, the alcohol is distilled in a vacuum at a low temperature, and the residue washed first with a little ether and then with water, recrystallization of the residue from benzene gives a pure product. A comparison of the methyl and ethyl esters made in this way with our products established their identity.
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