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一、引言:关于环丙烷分子的结构是一个饶有兴趣的问题。长期以来对它进行了不少的研究工作。我们知道,就某些物理和化学性质而言,环丙烷和链烯化合物很相似。例如,它也能和与链烯化合物加成的试剂起作用。这就说明它具有某些不饱和性,特别在其环的相邻处存在着双链的情况下,如乙烯基环丙烷,这种不饱和性就更为显著。但是它们之间也有不同之处,众所周知,环丙烷可以和不饱和基团发生共轭,而链烯化合物则不具有这种性质。另外,它和
I. Introduction: The structure of cyclopropane molecules is an interesting issue. For a long time it has done a lot of research work. We know that cyclopropanes and alkenes are similar for certain physical and chemical properties. For example, it also works with reagents that are added with alkene compounds. This shows that it has some degree of unsaturation, especially in the presence of double chains adjacent to its ring, such as vinylcyclopropane, which is even more pronounced. However, there are also differences between them. It is well-known that cyclopropane can be conjugated with unsaturated groups, whereas alkene compounds have no such properties. In addition, it and