Pd/Cu-Catalyzed Cascade C(sp<sup>3</sup>)–H Arylation and Intramolecular C–N Coupling: A One-Pot Synthesis of 3,4-2<i>H</i>-Quinolinone Skeletons
作者:Han-Zhi Xiao、Wen-Shu Wang、Yu-Song Sun、Hao Luo、Bo-Wen Li、Xiao-Dong Wang、Wei-Li Lin、Fei-Xian Luo
DOI:10.1021/acs.orglett.9b00214
日期:2019.3.15
In this letter, we successfully explored a cascade Pd/Cu-catalyzed intermolecular C(sp3)–H arylation of amides and intramolecular C–N coupling reaction. This method provides a one-pot strategy to synthesize 3,4-2H-quinolinone with good regioselectivity of C–H arylation and C–N coupling from C–I and C–X bonds from readily available starting materials.
Ring fusion isomers of dithienoborepins: perturbations of electronic structure, aromaticity, and reactivity in boron-containing polycyclic heteroaromatics
作者:David R. Levine、Reid E. Messersmith、Maxime A. Siegler、John D. Tovar
DOI:10.1139/cjc-2016-0493
日期:2017.4
Through a combination of rational design and synthetic serendipity, two new structural isomers of the dithienoborepin (DTB) architecture have been realized. Unlike previous members of this family, these boron-containing polycyclic aromatics are unsymmetrical with respect to the fusion orientation of the central borepin and flanking thiophene rings. Characterization of the unsymmetrical dithienoborepins through
Structure−Property Investigations of Conjugated Thiophenes Fused onto a Dehydro[14]annulene Scaffold
作者:Matthew J. O’Connor、Robert B. Yelle、Lev N. Zakharov、Michael M. Haley
DOI:10.1021/jo800225u
日期:2008.6.1
A series of 12 thieno-fused macrocycles based on the dehydro[14]annulene framework have been prepared. Studies have focused on the optical and electronic properties of the dehydrobenzothieno[14]annulenes (DBTAs) and dehydrothieno[14]annulenes (DTAs) utilizing NMR spectroscopy, UV−vis spectrophotometry, electrochemistry, and DFT computations. X-ray crystal structures were also obtained for two of the