The process for the preparation of a selectively substituted cyclopentadiene compound which includes reacting a halide of a substituting compound in a mixture of the cyclopentadiene compound and an aqueous solution of a base in the presence of a phase transfer catalyst, wherein during the reaction the quantity of base relative to the cyclopentadiene compound may at any moment be between 5 and 30 mol/mol.
制备一种选择性取代
环戊二烯化合物的过程包括在
环戊二烯化合物和碱的
水溶液的混合物中,通过在相转移催化剂的存在下,将取代化合物的卤化物与
环戊二烯化合物反应,其中在反应过程中,碱相对于
环戊二烯化合物的量在任何时刻都可以在5到30摩尔/摩尔之间。