Dowex 50W: A Green Mild Reusable Catalyst for the Synthesis of 2-Aryl Benzoxazole Derivatives in Aqueous Medium
نویسندگان
چکیده
منابع مشابه
CdO nanoparticles as an efficient, mild and recyclable catalyst for the synthesis of 2-aryl benzoxazole derivatives by grinding method
CdO nanoparticles efficiently catalyzes the condensation of aromatic aldehydes with 2-aminophenol at room temperature to afford 2-aryl benzoxazole derivatives by grinding method. The reactions proceed under heterogeneous and mild conditions to provide 2-aryl benzoxazoles in excellent yields (87-97 %) with high purity under solvent free condition. The reaction requires short time (5-23 minutes) ...
متن کاملCdO nanoparticles as an efficient, mild and recyclable catalyst for the synthesis of 2-aryl benzoxazole derivatives by grinding method
CdO nanoparticles efficiently catalyzes the condensation of aromatic aldehydes with 2-aminophenol at room temperature to afford 2-aryl benzoxazole derivatives by grinding method. The reactions proceed under heterogeneous and mild conditions to provide 2-aryl benzoxazoles in excellent yields (87-97 %) with high purity under solvent free condition. The reaction requires short time (5-23 minutes) ...
متن کاملDowex-50W-Promoted Synthesis of Oxazoline, Imidazoline and Thiazoline Derivatives
Dowex-50W-hyodrgen ion exchange resin was used as a reusable catalyst for the synthesis of oxazoline, imidazoline and thiazoline derivatives through condensation reaction between arylnitriles and 2-aminoalcohol, ethylenediamine or 2-aminoethanthiol. This process provides several advantages such as excellent yields of the products, simple operation, convenient separation and inexpensive and recy...
متن کاملBasic Task-specific Ionic Liquid as Catalyst and Reaction Medium: A Green Protocol for the Synthesis of 4-Oxo-6-aryl-2-thioxo-1,2,3,4- tetrahydropyrimidine-5-carbonitrile Derivatives
Abstract A novel basic ionic liquid based on imidazolium cation is designed, synthesized and successfully used as a catalyst for the one-pot synthesis of 4-Oxo-6-aryl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile derivatives. The remarkable features of this new catalyst are its ethyleneoxy bridge which participates in dissolving organic compound in the ionic liquid and its strong base co...
متن کاملThe Synthesis of 2-Aminobenzoxazoles Using Reusable Ionic Liquid as a Green Catalyst under Mild Conditions.
A facile, green, and efficient method for the direct oxidative amination of benzoxazoles using heterocyclic ionic liquid as catalyst has been developed. The reaction proceeded smoothly at room temperature and gave the desirable 2-aminobenzoxazoles with good to excellent yields (up to 97%). The catalyst 1-butylpyridinium iodide can be easily recycled and reused with similar efficacies for at lea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Oriental Journal Of Chemistry
سال: 2021
ISSN: 2231-5039,0970-020X
DOI: 10.13005/ojc/370211