A process for preparing indene derivatives of the general formula I ##STR1## where R.sup.1 is a C.sub.1 -C.sub.10 -alkyl radical, a phenyl radical or a C.sub.1 -C.sub.4 -alkyl-substituted phenyl radical and A is a bridge which, together with the adjacent carbons, forms a six-membered aromatic or a five- or six-membered heteroaromatic or carbocyclic ring onto which a further aromatic ring may be fused, comprises reacting II with III ##STR2## (X=chlorine, bromine, iodine) in the presence of a Friedel-Crafts catalyst to give IV ##STR3## which is then dehydrogenated to I.
                            一种制备公式I的
茚衍
生物的方法,其中R1是C1-C10烷基基团,苯基基团或C1-C4烷基取代的苯基基团,A是桥,与相邻的碳一起形成六元芳香环或五元或六元杂芳香环或碳环,上面可以融合进一步的芳香环,包括将II与III在Friedel-Crafts催化剂存在下反应(其中II和III分别为图中的结构式),其中X为
氯、
溴或
碘,生成IV,然后将IV脱氢成为I。