BF3.SiO2: an efficient catalyst for the synthesis of azo dyes at room temperature
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چکیده
منابع مشابه
Bi(NO3)3.5H2O: An efficient acidic reagent for synthesis of azo dyes at room temperature
An one-pot method has been developed for the synthesis of azo dyes via sequential diazotization–diazo coupling of aromatic amines with coupling agents at room temperature in the presence of Bi(NO3)3. 5H2O. Short reaction times, high yields, a clean process, simple methodology, easy work-up and green conditions are advantages of this protocol.
متن کاملBi(NO3)3.5H2O: An efficient acidic reagent for synthesis of azo dyes at room temperature
An one-pot method has been developed for the synthesis of azo dyes via sequential diazotization–diazo coupling of aromatic amines with coupling agents at room temperature in the presence of Bi(NO3)3. 5H2O. Short reaction times, high yields, a clean process, simple methodology, easy work-up and green conditions are advantages of this protocol.
متن کاملbi(no3)3.5h2o: an efficient acidic reagent for synthesis of azo dyes at room temperature
an one-pot method has been developed for the synthesis of azo dyes via sequential diazotization–diazo coupling of aromatic amines with coupling agents at room temperature in the presence of bi(no3)3. 5h2o. short reaction times, high yields, a clean process, simple methodology, easy work-up and green conditions are advantages of this protocol.
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چکیده ندارد.
Polymer/HIO4 : An efficient catalyst for solvent-free synthesis of 2-naphthol azo dyes
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 ...
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ژورنال
عنوان ژورنال: Current Chemistry Letters
سال: 2012
ISSN: 1927-7296,1927-730X
DOI: 10.5267/j.ccl.2012.6.002