反应详情

In a manner analogous to that described in Example 5, starting from 37.12 g of aluminium trichloride, 13.42 g of 5-methoxybenzocyclobutene-1-carboxylic acid methyl ester and 26.05 g of o-methylthiobenzoyl chloride there is obtained 4-(o-methylthiobenzoyl)-5-hydroxybenzocyclobutene-1-carboxylic acid methyl ester in the form of a viscous yellow oil.