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1,3-二烯烃的齐聚本章将讨论过渡会属催化反应机理的研究方法,并以1,3-二烯烃的镍和钯的络合物作为催化剂为例,如丁二烯的环化三聚、丁二烯的环化二聚和丁二烯与甲醇的调聚。机理研究至少要依据三个方面的信息: 1.产物分析不仅要根据其组成,而且要考虑产物的立体化学。 2,动力学数据由此可提供催化循环中反应速度控制步骤的信息。但是,在均相催化中,反应物(如烯烃)往往与金属有轻度的络合。 3.模型络合物的研究模型络合物应该要和有关的催化反应具有同样的
Oligomerization of 1,3-Diolefins This chapter will deal with the study of the mechanism by which transitions will be catalyzed, taking the example of a complex of nickel and palladium 1,3-diene as a catalyst such as the cyclization of butadiene Trimerization, cyclodimerization of butadiene and telomerization of butadiene and methanol. Mechanistic studies should be based on at least three aspects of the information: 1. Product analysis should be based not only on its composition, but also on the stereochemistry of the product. 2. The kinetic data thus provides information on the reaction speed control steps in the catalytic cycle. However, in homogeneous catalysis, the reactants (such as olefins) tend to slightly complex with the metal. 3. Model Complexes The study model complexes should be related to the catalytic reaction with the same