Amine-catalyzed racemization of the imidazoline derivatives.
نویسندگان
چکیده
منابع مشابه
[Acute exposure to imidazoline derivatives in children].
OBJECTIVES To study acute exposure to imidazoline derivatives in 72 children younger than 15 years of age, followed-up from January 1994 to December 1999. METHODS This is a retrospective study of 72 patients with age between 2 months and 13 years (median 2 years; 25-75% = 1 to 3 years old) exposed to naphazoline (N = 48), fenoxazoline (N = 18), oxymetazoline (N = 5) and tetrahydrozoline (N = ...
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 کاملAmine-catalyzed hydrolyses of cyclodextrin cinnamates.
Hydrolyses of beta-cyclodextrin cinnamate (betaCDC) and alpha-cyclodextrin cinnamate were catalyzed by amines such as 1,4-diazabicyclo(2.2.2)octane, triethylamine, quinuclidine, piperidine, diisobutylamine, and n-butylamine. The rate constant of hydrolyses of the betaCDC-amine complexes follows the order: 1,4-diazabicyclo(2.2.2)octane > n-butylamine > quinuclidine > piperidine > triethylamine >...
متن کاملBetaine hydrochloride (BHC) catalyzed synthesis of 4-thiazolidinones derivatives
Betaine hydrochloride (BHC), as an ionic salt was found to be an efficient and recyclable catalyst for the one-pot synthesis of 4-thiazolidinediones. The methodology of study was achieved by one-pot condensation of aromatic aldehydes, aromatic amine and mercaptoacetic acid in the presence of betaine hydrochloride (BHC) at reflux temperature in ethanol as solvent. The efficiency of Betaine hydro...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1980
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.44.2239