2,4-Dichloro-5-methoxytropone afforded 3,5,6-trisubstituted 2H-cyclohepta[b]furan-2-one derivatives by condensation with dimethyl malonate and methyl acetoacetate in an exclusive ciné-condensation mode in various solvents.
                                    2,4-二
氯-5-甲氧基
托品酮与
丙二酸二甲酯和
乙酰乙酸甲酯在多种溶剂中以独特的电影缩合模式缩合,生成3,5,6-三取代的2H-环庚并[b]
呋喃-2-酮衍
生物。