3375-23-3Relevant articles and documents
Nano-Fe3O4 encapsulated-silica supported boron trifluoride as a novel heterogeneous solid acid for solvent-free synthesis of arylazo-1-naphthol derivatives
Bamoniri, Abdolhamid,Moshtael-Arani, Naimeh
, p. 16911 - 16920 (2015/03/30)
Nano-Fe3O4 encapsulated-silica supported boron trifluoride (Fe3O4@SiO2-BF3) as a new type of green heterogeneous solid acid was prepared by the immobilization of BF3·Et2O on the surface of Fe3O4@SiO2 core-shell nanoparticles and characterized by Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), field emission-scanning electron microscope (FE-SEM), energy dispersive X-ray (EDS), and transmission electron microscope (TEM). Then, this super solid acid was used as an acidic reagent for the synthesis of aryl diazonium salts as a starting reactant, followed by its diazo coupling with 1-naphthol in a basic solvent-free medium at room temperature. The main advantages of this clean method were high yields, short reaction times, the possibility of performing it at room temperature, and no need of corrosive and toxic liquid acids and solvents. In addition, the long-term stability of aryl diazonium salts supported on Fe3O4@SiO2-BF3 magnetic nanoparticles (MNPs) at room temperature was one of the most important results of this procedure. This journal is
THE RADICAL COUPLING MECHANISM IN THE DIAZO COUPLING REACTION. MIGRATION VS. DECOMPOSITION OF PHENYLAZO RADICAL GENERATED FROM PHENYLAZO 1-NAPHTHYL ETHER IN THE SOLVENT CAGE
Tezuka, Takahiro,Tanikawa, Hiroharu,Sasaki, Katsunori,Tajima, Harumi
, p. 1811 - 1814 (2007/10/02)
The thermal reaction of phenylazo 1-naphthyl ether generates a pair of phenylazo and naphthoxy radicals in the solvent cage, in which these radicals couple together at the aromatic carbon to give 4-phenylazo-1-naphthol and 2-phenylazo-1-naphthol.
The Reaction of Diazonium Ion Generated from α-Azohydroperoxide with Phenols. The Isolation and Reaction of Diazoether Intermediate
Tezuka, Takahiro,Ando, Setsuo,Wada, Toshinori
, p. 1667 - 1670 (2007/10/02)
The reaction of benzenediazonium ion generated from α-azohydroperoxide with 1-naphthol gave a diazoether which rearranged to 2- and 4-phenylazo-1-naphthols.