Ultrasound‐assisted reduction of bis azo dye into aromatic amines on natural textile fibres: A greener approach

2022 ◽  
Author(s):  
Rajkumar Dewani ◽  
Munawwer Rasheed ◽  
Farman Ahmed ◽  
Muhammad Zubair Asim ◽  
Mansoor Shaikh ◽  
...  
Keyword(s):  
Aromatic Amines ◽  
Azo Dye ◽  
Textile Fibres ◽  
Ultrasound Assisted

ChemInform Abstract: Ultrasound-Assisted Ullmann Reaction of Alkyl and Aromatic Amines with Substituted Benzoic Acids Using Copper Catalyst.

ChemInform ◽  
2012 ◽  
Vol 43 (45) ◽  
pp. no-no
Author(s):  
Michael Ruby Raj ◽  
Krishnaraj Arun ◽  
Muthupandian Ashokkumar ◽  
Sambandam Anandan
Keyword(s):  
Aromatic Amines ◽  
Copper Catalyst ◽  
Benzoic Acids ◽  
Ullmann Reaction ◽  
Ultrasound Assisted ◽  
Substituted Benzoic Acids

Ultrasound-assisted rapid synthesis of β-aminoketones with direct-type catalytic Mannich reaction using bismuth(III) triflate in aqueous media at room temperature

2012 ◽  
Vol 66 (1) ◽  
Author(s):  
S. Ozturkcan ◽  
Kadir Turhan ◽  
Zuhal Turgut
Keyword(s):  
Reaction Time ◽  
Mannich Reaction ◽  
Aromatic Amines ◽  
Room Temperature ◽  
Aqueous Media ◽  
Aromatic Aldehydes ◽  
Rapid Synthesis ◽  
Low Toxicity ◽  
Ultrasound Assisted ◽  
Easy Operation

AbstractAn innovative, powerful, efficient and relatively rapid method was developed to synthesise various β-aminoketone derivatives from cyclohexanone, substituted aromatic amines and aromatic or hetero-aromatic aldehydes via ultrasound-assisted direct-type catalytic Mannich reaction using bismuth(III) triflate in water. Good yields of the desired β-aminoketones were obtained at room temperature by ultrasound-assisted reaction within 1–2 h. The major advantages of the proposed method are undemanding conditions, easy operation, low toxicity, shorter reaction time, anti selectivity and higher yields in comparison with conventional methods.

Removal of aromatic amines and decolourisation of azo dye baths by electrochemical treatment

2013 ◽  
Vol 129 (4) ◽  
pp. 267-273 ◽  
Author(s):  
Victor López-Grimau ◽  
Miquel Riera-Torres ◽  
Montserrat López-Mesas ◽  
Carmen Gutiérrez-Bouzán
Keyword(s):  
Aromatic Amines ◽  
Azo Dye ◽  
Electrochemical Treatment
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