反应详情

Following a procedure similar to that described in Example 58A above, 13 g. of 3,4-dihydroxyphenyl tert-butylaminomethyl ketone hydrochloride was reacted with 8.1 g. of sodium methoxide in 200 ml. of N,N-dimethylformamide, and the resulting sodium phenolate was interacted with 8.5 g. of p-toluyl chloride to yield 3-hydroxy-4-(p-toluyloxy)phenyl tert-butylaminomethyl ketone. This base was converted to the methanesulfonate by treatment, in 200 ml. of warm N,N-dimethylformamide, with methanesulfonic acid. The 3-hydroxy-4-(p-toluyloxy)phenyl tert-butylaminomethyl ketone methanesulfonate thus obtained was a white crystalline solid which weighed 12 g. and melted at 265° C. (dec.)(uncorr.).