N-[(5-chloro-2-hydroxyphenyl)methylidene]-4-methylbenzenesulfonamide 、
isopropyl 2,3-butadienoate 在
6'-N-methylformamide-β-ICD 作用下,
以
乙醚 为溶剂,
反应 24.0h,
生成 isopropyl 6-chloro-2-methyl-4-(4-methylphenylsulfonamido)-4H-chromene-3-carboxylate 、
isopropyl 6-chloro-2-methyl-4-(4-methylphenylsulfonamido)-4H-chromene-3-carboxylate