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协调反应是有机化学中的一类基本反应,它所通过的中间体是一个环状的过渡状态①。由于所有的化学反应中每一个单元步骤都可以认为是一个协调过程,因此研究它的反应机制就具有持别重要的意义。在Weedward和Heffmann利用反应物和生成物的分子轨道能量相关图,分析这类反应的选择规律,提出轨道对称守恒原理的同时,还有其他一些研究工作者,从另一个角度出发,对这类反应的特性提出了其他的解释。芳香型过渡状态理论就是其
Coordination reaction is a kind of basic reaction in organic chemistry, the intermediate which it passes is a ring-shaped transitional state. Since every unit step in all chemical reactions can be considered as a coordination process, it is of crucial importance to study its response mechanism. Weedward and Heffmann use the molecular orbital energy correlation diagram of reactants and products to analyze the selection rules of such reactions and put forward the principle of conservation of orbital symmetry. In addition, there are other researchers who, from another perspective, The nature of the reaction suggests other explanations. Aromatic transitional state theory is it