I. S. Odin, R. N. Itakhunov, D. M. Gusev, A. V. Vologzhanina, A. A. Golovanov
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引用次数: 0
Abstract
5-(4,5-Dihydro-1H-pyrazol-3-yl)isoxazoles (pyrazoline-isoxazoles) are readily oxidized by active manganese dioxide in benzene or dichloromethane at room temperature. As a result, a simple and efficient method for the synthesis of the corresponding pyrazoleisoxazoles in 94–99% yields was developed. It was shown that 3-ethynyl-1H-pyrazoles are inactive in the 1,3-dipolar cycloaddition reaction with nitrile oxides and nitrile imines. The synthesized di- and trisubstituted pyrazole-isoxazoles showed weaker luminescent properties compared to pyrazoline-isoxazoles.
期刊介绍：
Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections:
General and Inorganic Chemistry;
Physical Chemistry;
Organic Chemistry;
Organometallic Chemistry;
Chemistry of Natural Compounds and Bioorganic Chemistry.
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