Tietze, Lutz FriedjanLutz FriedjanTietzeKettschau, G.G.KettschauHeuschert, U.U.HeuschertNordmann, G.G.Nordmann2018-11-072018-11-072001https://resolver.sub.uni-goettingen.de/purl?gro-2/30400The twofold Heck reaction of the vinylpyrroles 3a and 3b with the iodobenzenes 4a-c led to the linear pyrrole oligomers 5, 6, and 7. The synthesis of both symmetrical and unsymmetrical oligomers, such as 10a and 10b, was also accomplished by a Heck reaction of 8 and 9 and by a Heck reaction of 3a and 11 followed by a Wittig reaction and a second Heck reaction with 8. The pentacyclic oligomers 14 and 19 were prepared by a twofold Heck reaction of 13 with 4 and by a twofold Heck reaction of 15 with 16 followed by a Wittig reaction and a twofold Heck reaction with 8.journal_article10.1002/1521-3765(20010119)7:2<368::AID-CHEM368>3.3.CO;2-U11271522000166762000006