77256-11-2Relevant academic research and scientific papers
Through-space control of the persistence of photogenerated o-quinonoid intermediates in naphthalenes containing cofacially oriented chromenes and arenes
Moorthy, Jarugu Narasimha,Mandal, Susovan,Parida, Keshaba Nanda
, p. 2438 - 2441 (2012/07/13)
Remarkable modulation of the persistence of the photogenerated colored o-quinonoid intermediates via a through-space interaction has been demonstrated in chromenes 1-4 based on 1,8-diarylnaphthalenes. Polar/π interaction is shown to stabilize the closed form of 4 to such an extent that photoinduced coloration is virtually invisible, while the same stabilization in the opened form of 2 permits ready coloration with a long-lived o-quinonoid intermediate.
Exploring the selectivity of the Suzuki-Miyaura cross-coupling reaction in the synthesis of arylnaphthalenes
Lima, Carlos F.R.A.C.,Rodriguez-Borges, José E.,Santos, Luís M.N.B.F.
experimental part, p. 689 - 697 (2011/03/19)
A series of 1-arylnaphthalenes and 1,8-diarylnaphthalenes were synthesized by the Suzuki-Miyaura cross-coupling methodology showing significant differentiation in the yields and selectivity between aryl rings with electron donating (higher yields), and el
Synthesis and molecular structure of symmetrical 1,8-diarylnaphthalenes
Pieters, Gregory,Terrasson, Vincent,Gaucher, Anne,Prim, Damien,Marrot, Jerome
experimental part, p. 5800 - 5806 (2011/01/12)
The synthesis of substituted 1,8-diarylnaphthalenes is reported. A bis-Suzuki coupling strategy starting from 1,8-dibromonaphthalene provides a useful and general route to the 1,8-diarylnaphthalene scaffold. In this context, N-heterocyclic benzhydrylamine ligands, in combination with PdCl2, were found to form especially efficient catalytic systems. The syn/anti ratios were determined in solution from their 1H NMR spectra. Analysis of the molecular structure in the solid state for six new targets focused on deformation of the naphthalene core. The observed lack of planarity occurs as a result of several parameters, such as the nature and number of substituents, the substitution pattern as well as steric congestion and π-stacking between cofacial rings. The synthesis of substituted 1,8-diarylnaphthalenes using bis-Suzuki coupling of 1,8-dibromonaphathalene is described. Molecular structures in the solid state for six new compounds were analyzed. The influence of several parameters on naphthalene core deformation are described.
Pillared salicylaldehyde derivatives as building blocks for the design of cofacial salen-type ligands
Sabater, Laurent,Guillot, Regis,Aukauloo, Ally
, p. 2923 - 2926 (2007/10/03)
The syntheses of pillared salicylaldehyde derivatives on a naphthalene block are reported. These compounds can be considered as building blocks for the elaboration of cofacial salen-typed ligands. The X-ray structure of a dinuclear manganese(III) complex is described, supporting our strategy to build topologically controlled multinuclear metal complexes.
Stereologous Crown Ethers: ?-Donor Participation in the Complexation of Cations?
Leppkes, Reinhard,Voegtle, Fritz
, p. 215 - 219 (2007/10/02)
In the framework of the "stereology concept" the new crown ethers 8, 9, and for comparison 11 have been synthesized and their stability constants with Ag+ ions determined by 1H NMR spectroscopy.The results may be interpreted as evidence for a ?
