Cyclopentadienyl derivatives are described having general formula (I)
where
R, R1, R2, R4, equivalent to or different from one another, are selected from: -H, alkyl radicals having a number of carbon atoms from 1 to 5, cycloalkyl radicals having a number of carbon atoms from 5 to 8, aryl and alkylaryl radicals having a number of carbon atoms from 6 to 8, aralkyl radicals having a number of carbon atoms from 7 to 9; n is an integer from 2 to 18;
with the proviso that the number of R different from H does not exceed 2;
with the exclusion of the compound having n=3, R=R1=R2=R4=H.
The invention also describes the process for the preparation of the above-mentioned cyclopentadienyl derivatives.
所述
环戊二烯基衍
生物具有通式 (I)
其中
R、R1、R2、R4,彼此等同或不同,选自:-H、碳原子数为 1 至 5 的烷基、碳原子数为 5 至 8 的环烷基、碳原子数为 6 至 8 的芳基和烷芳基、碳原子数为 7 至 9 的芳烷基;n 为 2 至 18 的整数;
但条件是与 H 不同的 R 的数目不超过 2;
除具有 n=3 的化合物外,R=R1=R2=R4=H。
本发明还描述了上述
环戊二烯衍
生物的制备过程。