Synthesis of a Family of Highly Substituted Porphyrin Thioethers via Nitro Displacement in 2,3,7,8,12,13,17,18-Octaethyl-5,10,15,20-tetranitroporphyrin
作者:Marc Kielmann、Keith J. Flanagan、Karolis Norvaiša、Daniela Intrieri、Mathias O. Senge
DOI:10.1021/acs.joc.7b00328
日期:2017.5.19
A series of highly substituted porphyrin thioethers was synthesized from 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetranitroporphyrin (H2OETNP). The reactions proceeded via a SNAr mechanism with a broad range of aromatic thiols in the presence of a base. This is a rapid way to prepare a large variety of meso-substituted porphyrins from only one precursor. Single crystal X-ray analysis revealed that
由2,3,7,8,12,13,17,18-八乙基-5,10,15,20-四硝基卟啉(H 2 OETNP)合成了一系列高度取代的卟啉硫醚。经由A S进行反应Ñ氩机构具有宽范围中,在碱的存在下芳族硫醇的。这是仅由一种前体制备多种内消旋卟啉的快速方法。单晶X射线分析表明,这些新的卟啉硫醚高度扭曲,显示出构象性质,通常是中硫取代和空间拥挤的特征。另外,H 2的脱硝研究了在基本条件下的OETNP,得到逐步取代的产物。这允许进行比较性X射线晶体学研究,以描述在一系列完整的硝基取代的八乙基卟啉中硝基取代度不断提高的连续结构效应。