suitable for further transformations with residues such as –p-C6H5Br, –p-C6H5–CCH, –p-C6H5–NH2 or –(CH2)3–CHCH2. Similar reactions of tetrabenzoporphyrin with alkyllithium reagents afforded the first entry into meso mono- and dialkylsubstituted tetrabenzoporphyrins while reaction of bicyclo[2.2.2]oct-type masked isoindole precursors with LiR followed by in situ retro-Diels–Alder reaction also afforded
- 2,3,7,8,12,13,17,18-八乙基
卟啉与含有官能团的容易产率中位取代的适合于与残基如进一步转化衍
生物LIR试剂的反应p -C 6 H ^ 5 BR, - p - C 6 H 5 –CCH,– p -C 6 H 5 –NH 2或–(CH 2)3 –CHCH 2。四苯并
卟啉与烷基
锂试剂的类似反应提供了首先进入内消旋的单和二烷基取代的四苯并
卟啉,而双环[2.2.2]八型掩蔽的异
吲哚前体与LiR的反应,然后原位逆Diels-Alder反应也提供了5-高纯度的苯基和5,10-二苯基四苯并
卟啉。