A method of preparing cyclene having formula (I) from triethylenetetraamine having formula (VIII) or ethylenediamine having formula (VIII′) includes a series of steps. The first series of steps (I) includes a step A (one-pot preparation of the compound having formula (IIa) from the compound having formula (VIII)), followed by a step B (transforming the compound having formula (IIa) into cyclene having formula (I)). The second series of steps (II) includes a step C (preparing the compound having formula (IIb) from the compound having formula (VIII)), followed by a step D (transforming the compound having formula (IIb) into cylcene having formula (I)). The third series of steps (III) includes a step E involving the onepot preparation of the compound having formula (IIa) from the compound having formula (VIII), followed by a step B involving the transformation of the compound having formula (IIa) into cyclene having formula (I).
                            从具有公式(VIII)的
三乙烯四胺或具有公式(VIII')的
乙二胺制备具有公式(I)的
环己烯的方法包括一系列步骤。第一系列步骤(I)包括步骤A(从具有公式(VIII)的化合物制备具有公式(IIa)的单步法),然后是步骤B(将具有公式(IIa)的化合物转化为具有公式(I)的
环己烯)。第二系列步骤(II)包括步骤C(从具有公式(VIII)的化合物制备具有公式(IIb)的化合物),然后是步骤D(将具有公式(IIb)的化合物转化为具有公式(I)的
环己烯)。第三系列步骤(III)包括步骤E,涉及从具有公式(VIII)的化合物单步法制备具有公式(IIa)的化合物,然后是步骤B,涉及将具有公式(IIa)的化合物转化为具有公式(I)的
环己烯。