Highly efficient boron removal from water was achieved by using mesoporous silica materials functionalised with saccharides.
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Diels-Alder Reactions of Boron-Substituted Furans with -Phenylmaleimide: Strategies for Tuning the Reactivity and Selectivity.
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Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina.
The Diels-Alder reactions of boron-substituted furans with -phenylmaleimide have been investigated experimentally and computationally. In contrast to previous results with maleic anhydride, in this case potassium 3-furanyltrifluoroborate and the analogue at C-2 reacted efficiently, giving the [4 + 2] cycloadducts at room temperature with high yields. The diastereoisomer was obtained exclusively for the latter, while its C-3 counterpart showed variable / diastereoselectivities.
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School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China.
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