Ingo Knepper

TL;DR: An efficient and practical route to 7-azaindole framework has been developed by one-pot, three-component cyclocondensation of N-substituted 2-amino-4-cyanopyrroles, various aldehydes, and active methylene compounds in ethanol or acetic acid at reflux.

TL;DR: The Heck reaction of 2,3,6-tetrabromo-N-methylindoles was in favour of carbon atoms C-2 and C-3 as mentioned in this paper.

TL;DR: In this article, Dibenzothiophenes and carbazoles were prepared by tetrafold Heck reactions of tetrabromothiophene and N-methyltetrabilabromopyrrole and subsequent 6π-electrocyclization and dehydrogenation.

TL;DR: The Suzuki-Miyaura coupling reaction of tetrabromo-p-benzoquinone and 2,3-dibromonaphthoquinone provides a convenient approach to tetraaryl-p-,benzo-quinones as mentioned in this paper.

TL;DR: The reaction of electron-rich aminoheterocycles with 3-acyl-and 3-formylindoles results in indole ring opening and cyclocondensation to give heteroannulated pyridines, which can be regarded as purine isosteres.