265670-91-5Relevant academic research and scientific papers
One-pot homo- and cross-coupling of diazanaphthalenes via C-H substitution: Synthesis of Bis- and Tris-diazanaphthalenes
Ucar, Sefa,Dastan, Arif
supporting information, p. 4013 - 4022 (2020/09/21)
The transition metal-free coupling reactions of unactivated diazanaphthalenes were studied using only lithium tetramethylpiperidine (LiTMP) reagent. Symmetrical and nonsymmetrical bis-diazanaphthalenes were synthesized in moderate to high yield by homo- and cross-coupling of related monomers. In addition, the single-step synthesis of diquinoxalino [2,3-a: 2', 3'c] phenazine and 2,2': 3', 2″ - terquinoxaline using the appropriate equivalent amount of LiTMP was performed. The products were characterized by means of NMR spectroscopy and HRMS spectrometry.
Carbon networks based on dehydrobenzoannulenes. 3. Synthesis of graphyne substructures
Kehoe, Joshua M.,Kiley, James H.,English, Jamieson J.,Johnson, Charles A.,Petersen, Ryan C.,Haley, Michael M.
, p. 969 - 972 (2007/10/03)
(equation presented) This Letter describes the synthesis of the first macrobicyclic subunits of the hypothetical all-carbon network graphyne. Key to synthetic success is an intramolecular Sonogashira cross-coupling sequence.
It takes alkynes to make a world - New methods for dehydrobenzoannulene synthesis
Haley, Michael M.
, p. 557 - 565 (2007/10/03)
Recent advances in the assembly of dehydrobenzoannulenes (DBAs) are the subject of this account. Using in situ generated acetylenic intermediates, novel α,ω-polyynes can be easily constructed using Pd-catalyzed alkynylation methodology. Subsequent cyclization via intra- and intermolecular Cu-mediated reactions can provide a wide variety of DBAs, including heretofore inaccessible topologies, systems with an unprecedented number of acetylenic linkages, structures with derivatized aromatic rings, and unusual organometallic species.
