109397-59-3Relevant articles and documents
Formylation of electron-rich aromatic rings mediated by dichloromethyl methyl ether and TiCl4: Scope and limitations
Ramos-Tomillero, Iván,Paradís-Bas, Marta,De Pinho Ribeiro Moreira, Ibério,Bofill, Josep María,Nicolás, Ernesto,Albericio, Fernando
supporting information, p. 5409 - 5422 (2015/05/13)
Here the aromatic formylation mediated by TiCl4 and dichloromethyl methyl ether previously described by our group has been explored for a wide range of aromatic rings, including phenols, methoxy- and methylbenzenes, as an excellent way to produce aromatic aldehydes. Here we determine that the regioselectivity of this process is highly promoted by the coordination between the atoms present in the aromatic moiety and those in the metal core.
Ortho-methylated tribenzotriquinacenes - Paving the way to curved carbon networks
Kirchwehm, Yvonne,Damme, Alexander,Kupfer, Thomas,Braunschweig, Holger,Krueger, Anke
, p. 1502 - 1504 (2012/03/11)
The synthesis of sterically crowded tribenzotriquinacenes with complete and partial methylation of the ortho-positions has been achieved using the double cyclodehydration strategy. This leads to a twisted tribenzotriquinacene core and enables further func
Acidity of Dibasic Acids I: the Second Acidity Constant of 9,10-Dihydroanthracene and its 9,10-Substituted Derivatives: Effect of Substituent and Counter Ion
Shapiro, Israel O.,Nir, Malka,Hoffman, Roy E.,Rabinovitz, Mordecai
, p. 1519 - 1524 (2007/10/02)
The second equilibrium ion pair acidity constants (pK2) of 9,10-dihydroanthracene, 9-phenyl-9,10-dihydroanthracene, 9,10-diphenyl-9,10-dihydroanthracene and 9-cyano-9,10-dihydroanthracene with sodium, potassium and rubidium have been determined in tetrahydrofuran (THF) at 25 deg C in the concentration range 10-5-10-2 mol dm-3.Equilibria were monitored by UV-VIS and 1H NMR spectroscopies and the spectra of the dimetallic and monometallic salts reported.The dimetallic salts of all the dibasic carbon acids studied behave as contact ion pairs in THF.The pK2 of 9,10-dihydroanthracene is insensitive to substituent effect but is strongly dependent on the cation.