Synthesis of Annulated Arenes and Heteroarenes Involving Lewis Acid-Mediated Regioselective Annulation of Unsymmetrical 1,2-(Diaryl/diheteroarylmethine)dipivalates
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https://figshare.com/articles/dataset/Synthesis_of_Annulated_Arenes_and_Heteroarenes_Involving_Lewis_Acid_Mediated_Regioselective_Annulation_of_Unsymmetrical_1_2_Diaryl_diheteroarylmethine_dipivalates/2476393
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资源简介：
A ZnBr2-mediated regioselective annulation
of unsymmetrical
1,2-diarylmethinedipivalates in DCM at room temperature led to the
formation of annulated arenes and heteroarenes. The annulation of
the dipivalate proceeds through the intermediacy of benzylic carbocations
followed by intramolecular cyclization and subsequent aromatization
to give the annulated products. The annulation methodology is highly
efficient for the syntheses of anthracene as well as naphtho[b]thiophene analogues.
创建时间：
2012-10-19
