反应详情

By substantially following the procedure given in Example 19b, substituting 2-(N-methyl-N-(methoxycarbonyl)amino)-4'-propoxyacetophenone for 2-(N-methyl-N-(methoxycarbonyl)amino)-4'-difluoromethoxyacetophenone and using diethyl ether as solvent and continuing with Example 19dii the expected compound, an oil, bp 150°-160° C. at 0.2 torr, was obtained.