Department of Chemistry, QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
Org Lett. 2011 Jan 7;13(1):130-3. doi: 10.1021/ol102691s. Epub 2010 Dec 3.
A novel 1,3-dioxopyrrolo[3,4-b]porphyrin (2) has been synthesized in 70% yield following a [4 + 2] cycloaddition reaction of pyrrolo[3,4-b]porphyrin 1 with (1)O(2). The new imide was used as a template to other 1,3-dioxopyrrolo[3,4-b]porphyrins and to the corresponding open counterparts. The UV/vis absorption spectra of the new compounds show significant red-shifts when compared with those of the nonsubstituted analogues. The structure of an imide derivative was confirmed by single-crystal X-ray diffraction.
一种新型的 1,3-二氧代吡咯并[3,4-b]卟啉（2）通过吡咯并[3,4-b]卟啉 1 与（1）O（2）的[4 + 2]环加成反应以 70%的产率合成。新的酰亚胺被用作模板，用于合成其他 1,3-二氧代吡咯并[3,4-b]卟啉和相应的开环类似物。与未取代的类似物相比，新化合物的紫外/可见吸收光谱显示出明显的红移。酰亚胺衍生物的结构通过单晶 X 射线衍射得到证实。
