Process for cyclopentadiene substitution with groups differing f

Details Process for cyclopentadiene substitution with groups differing f Process for cyclopentadiene substitution with groups differing f

1998-11-02

2000-05-16

Nazario-Gonzalez, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 43, 556 53, 585375, 526126, 526160, 526943, 526161, 987 2, C07F 1700, C08F 464

Patent

active

060639482

ABSTRACT:
Polysubstituted cyclopentadiene compound wherein at least two different substituents are present from the group consisting of linear, branched and cyclic alkyls, aralkyls and alkenyls, and a process for the preparation of a cyclopentadiene compound substituted with at least two different groups chosen from the group consisting of linear, branched, cyclic and aromatic alkyls and alkenyls, characterized in that it comprises the reacting of a halide of a first substituting group in a mixture of the cyclopentadiene compound and an aqueous solution of a base, in which the quantity of the base relative to the cyclopentadiene compound is between 5 and 30 mol/mol, in the presence of a phase transfer catalyst, followed by the addition of a halide of a second or optionally a third substituting group to the reaction mixture.

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