Synthesis ofC3-Symmetric Nano-Sized Polyaromatic Compounds by Trimerization and Suzuki−Miyaura Cross-Coupling Reactions
作者:Sambasivarao Kotha、Dhurke Kashinath、Kakali Lahiri、Raghavan B. Sunoj
DOI:10.1002/ejoc.200400257
日期:2004.10
Various C3-symmetric molecules were prepared by trimerization of acetyl aromatic compounds and subsequently coupled with various boronic acids under Pd0 catalysis conditions to generate oligoaryl/-heteroaryl C3-symmetric molecules. Several furan- and thiophene-containing star-shaped molecules were prepared by the use of Suzuki−Miyauracross-coupling as a key step. Structural and conformational details
Structures of branched oligophenylenes studied by NMR spectroscopy
作者:I. A. Khotina、A. I. Kovalev、N. S. Kushakova、M. A. Babushkina、Yu. V. Vasil’ev、A. S. Peregudov
DOI:10.1007/s11172-013-0323-7
日期:2013.10
A series of model cyclotrimers was studied by NMRspectroscopy using 2D COSY, HSQC, and HMBC correlations to establish the structures of branched oligophenylenes, whose branching center is the 1,3,5-triphenyl-substituted benzene ring.
A novel electromagnetic mill promoted mechanochemical solid-state Suzuki–Miyaura cross-coupling reaction using ultra-low catalyst loading
作者:Xin Li、Yunxia Liu、Lizhi Zhang、Yunhui Dong、Qing Liu、Daopeng Zhang、Lei Chen、Zengdian Zhao、Hui Liu
DOI:10.1039/d2gc01427k
日期:——
The Nobel-prize-winning Suzuki–Miyauracross-coupling (SMC) is a practical and attractive strategy for the construction of C–C bonds in both academic and industrial settings. However, the development of solid-state SMC reactions remains extremely scarce. Herein, we report an electromagnetic mill (EMM) promoted solid-state SMC reactionusing ultra-low palladium loading (0.05 mol%) without any liquid
The Orientation of Electrophilic Substitution in 1,3,5-Triphenylbenzene
作者:G. Edwin Lewis
DOI:10.1021/jo01019a071
日期:1965.8
DBU-Mediated Construction of 1,3,5-Trisubstituted Benzenes via Annulation of α,β-Unsaturated Carboxylic Acids and α-Cyano-β-methylenones
作者:Chun-Lin Zhang、Zhao-Fei Zhang、Zi-Hao Xia、You-Feng Han、Song Ye
DOI:10.1021/acs.joc.8b01740
日期:2018.10.19
A DBU-mediated synthesis of 1,3,5-trisubstituted benzenes was developed via the [2 + 4] annulation of in situ activated α,β-unsaturatedcarboxylic acids and α-cyano-β-methylenones. The dual role of DBU as Brønsted base and nucleophilic Lewis base is the key for the success of the reaction.