Solvent-free microwave-mediated Michael addition reactions
نویسندگان
چکیده
منابع مشابه
Silica sulfuric acid promotes aza-Michael addition reactions under solvent-free condition as a heterogeneous and reusable catalyst.
A highly efficient, inexpensive, recyclable, convenient, and green protocol for chemoselective aza-Michael addition reactions of amines/thiols to alpha,beta-unsaturated compounds using silica sulfuric acid (SSA or SiO(2)-SO(3)H) was developed. This method is simple, convenient and the title compounds are produced in good to excellent yields.
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A irradiação de chalconas com microondas na ausência de solvente se mostrou um procedimento de “química verde” para a preparação, em bons rendimentos, de flavanonas. Diferentes catalisadores heterogêneos e catalisadores convencionais foram testados usando-se um forno de microondas doméstico. A irradiação de chalconas com 30% de ácido trifluoroacético, na presença de gel de sílica, levou a forma...
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ژورنال
عنوان ژورنال: Journal of Chemical Sciences
سال: 2005
ISSN: 0253-4134,0973-7103
DOI: 10.1007/bf02708445