作者:Olga S. Finikova、Sergei E. Aleshchenkov、Raymond P. Briñas、Andrei V. Cheprakov、Patrick J. Carroll、Sergei A. Vinogradov
DOI:10.1021/jo047741t
日期:2005.6.1
naphthalene or 1,4-benzoquinone. The pathway originating in dihydronaphthalene, i.e., the “dialine” route, was found to be superior to the alternative “octaline” route in that it (1) enables the shortening of the overall reaction sequence, (2) has a broader scope in terms of the peripheral substitution in Ar4TNPs, and (3) affords higher yields of the target porphyrins. Pd complexes of the synthesized Ar4TNPs
开发了一种新的合成内消旋-四芳基四萘并[2,3]卟啉(Ar 4 TNP)的方法。通过将其中吡咯单元与八氢或二氢萘部分稠合的内-四芳基卟啉进行氧化芳构化,可获得具有外围官能团的Ar 4 TNP 。这些前体卟啉由容易获得的起始原料(例如萘或1,4-苯醌)以四到五个步骤合成。发现源自二氢萘的途径(即“二氢萘”途径)优于替代的“八氢萘”途径,因为它(1)能够缩短总体反应顺序,(2)在范围上具有更广泛的范围Ar 4中的外围取代反应TNPs和(3)提供了更高的目标卟啉收率。合成的Ar 4 TNP的Pd配合物在710-720 nm(ε〜200 000 M - 1 cm - 1)处显示出很强的吸收带,并在室温下以适度的量子产率磷化(φ= 2-3%,λmax = 900-1000 nm)。发现与未取代的Ar 4的相应最大值相比,被八个甲氧基(Ar 4 TNP(OMe)8)取代的萘卟啉的吸收最大值约为15-20