334866-07-8Relevant academic research and scientific papers
Synthesis of a linear oligomeric styrylpyrrole using multiple heck and wittig reactions
Tietze,Nordmann
, p. 337 - 340 (2001)
The linear mixed oligomer 1 consisting of three pyrrole and four divinylbenzene moieties was synthesized by two twofold Heck and Wittig reactions in four steps starting from diiodopyrrole 2 and vinylpyrrole 6.
Highly efficient synthesis of linear pyrrole oligomers by twofold Heck reactions
Tietze, Lutz F.,Kettschau, Georg,Heuschert, Ulrich,Nordmann, Gero
, p. 368 - 373 (2001)
The 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.
