346656-34-6Relevant articles and documents
Indeno[1,2-b]fluorene-Based [2,2]Cyclophanes with 4n/4n and 4n/[4n+2] π Electrons: Syntheses, Structural Analyses, and Excitonic Coupling Properties
Wang, Chi-Shin,Wei, Yu-Chen,Chang, Kai-Hsin,Chou, Pi-Tai,Wu, Yao-Ting
, p. 10158 - 10162 (2019)
Indeno[1,2-b]fluorene-based [2,2]cyclophanes with 4n/4n and 4n/[4n+2] π-electron systems were prepared, and their structures were identified by X-ray crystallography. With short π–π distances around 3.0 ?, [2.2](5,11)indeno[1,2-b]fluorenophane and its pre
Synthesis of substituted diazino[c]quinolin-5(6H)-ones, diazino[c]isoquinolin-6(5H)-ones, diazino[c]naphthyridin-6(5H)-ones and diazino[c]naphthyridin-5(6H)-ones
Fresneau, Nathalie,Cailly, Thomas,Fabis, Frédéric,Bouillon, Jean-Philippe
, p. 5393 - 5400 (2013/07/05)
Substituted diazino[c]quinolin-5(6H)-ones and -isoquinolin-6(5H)-ones, diazino[c]naphthyridin-6(5H)- and -5(6H)-ones were obtained using two synthetic routes: one-pot cross-coupling/cyclisation and two-step cross-coupling/KOH- mediated anionic ring closur
Synthesis of Ortho Substituted Arylboronic Esters by in Situ Trapping of Unstable Lithio Intermediates
Kristensen, Jesper,Lysen, Morten,Vedso, Per,Begtrup, Mikael
, p. 1435 - 1437 (2007/10/03)
matrix presented Ortho lithiation-in situ boration using lithium 2,2,6,6-tetramethylpiperidide (LTMP) in combination with triisopropylborate (B(OiPr)3) is a highly efficient and experimentally straightforward process for the preparation of ortho substituted arylboronic esters. The mild reaction conditions allow the presence of functionalities such as ester or cyano groups or halogen substituents that are usually not compatible with the conditions used in directed ortho metalation of arenes. The arylboronic esters underwent Suzuki-type cross-coupling with a range of aryl halides, furnishing biaryls in 53-94% yield.