A facile and novel approach to the synthesis of 2-phenylquinazolines was developed via a tandem reaction following sp(3) C-H functionalization. Twenty-five examples of 2-phenylquinazolines were obtained from easily available 2-aminobenzophenones and benzylic amines with good to excellent yields.
A highly efficient synthesis of polysubstituted oxazoles was developed via a copper-catalyzed tandem oxidative cyclization. The desired products can be obtained from readily available starting materials under mild conditions. This is an attractive alternative method for the synthesis of oxazole derivatives.
A practical and simple synthesis of 2,5-disubstituted oxazoles was developed via an iodine-catalyzed tandem oxidative cyclization. A wide range of common commercial aromatic aldehydes can be used as reaction substrates, which displayed excellent functional group compatibility in this reaction.
A series of quinazolines were synthesized from 2-aminobenzophenones and benzylic amines in good to excellent yields by employing a new heterogeneous catalyst based on the copper oxide nanoparticles supported on kaolin.
Different kinds of metal-DNA nanohybrids are synthesized from cheap natural DNA on a large scale. These air-stable M-DNA nanohybrids maintain the advantages of both DNA and the metal nanoparticles, which exhibit reversible solubility and high catalytic activities. Moreover, the M-DNA nanohybrids could be easily reused for several cycles.
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