ionic liquid-assisted synthesis of celexocib using tris-(2-hydroxyethyl) ammonium acetate as an efficient and reusable catalyst
نویسندگان
چکیده
celecoxib is classified as none traditional nonsteroidal anti-inflammatory drugs (nsaids). this compound has conventional properties of nsaids such as anti-inflammatory, analgesic, and antipyretic activities beside reduced risk of gastrointestinal side effect of traditional nsaids such as ibuprofen. this compound gets a second sale rank of nsaids market at 2016 in the world and sales more than 17000 kg in iran during the past 6 month. so, the simple, rapid and green method for synthesis of this compound is important. in the present study, a novel green method was suggested for the synthesis of celecoxib using the ionic liquid. celecoxib was provided by the reaction of trifluorineacetone, 4-methylbenzoylchloride, and 4-hydrazine benzene sulfonate amide hydrochloride. the tris-(2-hydroxyethyl) ammonium acetate as ionic liquid was prepared by mixing tris-(2-hydroxyethyl) ammonium and acetic acid, and used as an efficient catalyst. the structure of the synthetic products was confirmed by analytical and spectroscopic methods including 1hnmr, 13cnmr, ir, ms and elemental analysis. this ionic liquid can play dual roles in the synthesis of celecoxib, as a catalyst to improve electrophilicity of carbonyl group and also as a solvent of reaction. the reaction rate and yield (86%) were improved considerably. moreover il showed the same efficiency when used in 4 consecutive reactions.
منابع مشابه
Ionic liquid-assisted synthesis of celexocib using tris-(2-hydroxyethyl) ammonium acetate as an efficient and reusable catalyst
Celecoxib is classified as none traditional nonsteroidal anti-inflammatory drugs (NSAIDs). This compound has conventional properties of NSAIDs such as anti-inflammatory, analgesic, and antipyretic activities beside reduced risk of gastrointestinal side effect of traditional NSAIDs such as ibuprofen. This compound gets a second sale rank of NSAIDs market at 2016 in the world and sales more than ...
متن کاملIonic liquid-assisted synthesis of celexocib using tris-(2-hydroxyethyl) ammonium acetate as an efficient and reusable catalyst
Celecoxib is classified as none traditional nonsteroidal anti-inflammatory drugs (NSAIDs). This compound has conventional properties of NSAIDs such as anti-inflammatory, analgesic, and antipyretic activities beside reduced risk of gastrointestinal side effect of traditional NSAIDs such as ibuprofen. This compound gets a second sale rank of NSAIDs market at 2016 in the world and sales more than ...
متن کاملIonic Liquid-assisted Synthesis of Celexocib Using Tris-(2-hydroxyethyl) Ammonium Acetate as an Efficient and Reusable Catalyst
Celecoxib is classified as none traditional nonsteroidal anti-inflammatory drugs (NSAIDs). This compound has conventional properties of NSAIDs such as anti-inflammatory, analgesic, and antipyretic activities beside reduced risk of gastrointestinal side effect of traditional NSAIDs such as ibuprofen. This compound gets a second sale rank of NSAIDs market at 2016 in the world and sales more than ...
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چکیده ندارد.
The 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...
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عنوان ژورنال:
iranian journal of pharmaceutical researchجلد ۱۶، شماره ۱، صفحات ۱۵۸-۱۶۴
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