synthesized and some representative reactions were attempted on these compounds. The first step of the synthesis was the condensation of diethyl alkylsodiomalonates on aryloxymethyl chlorides. Hydrolysis of one ester group and treatment with thionyl chloride afforded the mono acyl halides which were cyclized by means of aluminium chloride.
合成了一系列的3-烷基-4-氧代chroman-3-
羧酸乙酯5,并对这些化合物进行了一些代表性的反应。合成的第一步是烷基二磺基
丙二酸二乙酯在芳氧基
甲基氯上的缩合。
水解一个酯基并用亚
硫酰氯处理,得到单酰基卤化物,其通过
氯化铝环化。