TY - EJOUR
AU - Bamoniri, Abdolhamid
AU - Pourali, Alireza
AU - Nazifi, Seyed Mohamad Reza
PY - 2024
DA - February
TI - Polymer/HIO4 : An efficient catalyst for solvent-free synthesis of 2-naphthol azo dyes
T2 - Iranian Journal of Catalysis
VL - 4
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/polymer-hio4-an-efficient-catalyst-for-solvent-free-synthesis-of-2-naphthol-azo-dyes/
N2 - A convenient, one-pot method for the synthesis of diazonium salt has been developed by the sequential diazotization of aromatic amines with NaNO2, polymer- supported periodic acid (PPIA) and 2-naphthole under solvent-free conditions at room temperature. By using this method, several types of aromatic amine, containing electron-withdrawing and electron-donating groups, were rapidly converted to the corresponding azo dyes in good to excellent yields. The ensuing aryl diazonium salts supported on polymer (aryl diazonium polymer), ArN2 +IO4 - were sufficiently stable to be kept at room temperature in the dry state. The use of mild reaction conditions and an inexpensive procedure are further advantages of this method.
IS - 4
PB - OICC Press
KW - Polymer-supported periodic acid, Diazotization, Solvent-free condition, Azo dye. 
EN -