1048972-22-0Relevant academic research and scientific papers
Systematic investigation of silver-carbon bonding in coordination frameworks with aryl ligands that contain ethynyl and ethenyl substituents
Hau, Sam C. K.,Mak, Thomas C. W.
, p. 5387 - 5400 (2013)
Single-crystal X-ray diffraction of a series of ten crystalline silver(I)-trifluoroacetate complexes that contained designed ligands, each of which was composed of an aromatic system that was functionalized with terminal and internal ethynyl groups and a
Radical cascade transformations of tris(o-aryleneethynylenes) into substituted benzo[a]indeno[2,1-c]fluorenes
Alabugin, Igor V.,Gilmore, Kerry,Patil, Satish,Manoharan, Mariappan,Kovalenko, Serguei V.,Clark, Ronald J.,Ghiviriga, Ion
supporting information; experimental part, p. 11535 - 11545 (2009/02/03)
Oligomeric o-aryleneethynylenes with three triple bonds undergo cascade radical transformations in reaction with a Bu3SnH/AIBN system. These cascades involve three consecutive cycle closures with the formation of substituted benzo[a]indeno[2,1-c]fluorene or benzo[1,2]fluoreno[4,3-b]silole derivatives. The success of this sequence depends on regioselectivity of the initial attack of the Bu3Sn radical at the central triple bond of the o-aryleneethynylene moiety. The cascade is propagated through the sequence of 5-exo-dig and 6-exo-dig cyclizations which is followed by either a radical attack at the terminal Ar substituent or radical transposition which involves H-abstraction from the terminal TMS group and 5-endo-trig cyclization. Overall, the transformation has potential to be developed into an approach to a new type of graphite ribbons.
