An Efficient Catalyst System for Pd-Catalyzed Amination of [2.2]Paracyclophanyl Bromides
摘要:
A practical Buchwald-Hartwig amination of [2.2]paracyclophanyl bromides with benzhydrylideneamine is developed. The method provides a Facile route to a variety of imino and amino [2.2]paracyclophanes that are otherwise not readily synthesized.
The synthesis of substituted amino[2.2]paracyclophanes
作者:Krishanthi P. Jayasundera、Disraëli N. M. Kusmus、Lise Deuilhé、Leonie Etheridge、Zane Farrow、David J. Lun、Gurpreet Kaur、Gareth J. Rowlands
DOI:10.1039/c6ob02150f
日期:——
Two methodologies for the formation of substituted amino[2.2]paracyclophane derivatives were developed. The first involves the direct amination of bromo[2.2]paracyclophanes with sodium azide. This permits the synthesis of simple mono- and disubstituted derivatives but fails to give sterically congested pseudo-gem derivatives. A ‘one-pot’ oxidation-Lossen rearrangement of [2.2]paracyclophane oximes
The Synthesis of Pyridyl[2.2]paracyclophanes by Palladium‐Catalyzed Cross‐Coupling of Pyridine Sulfinates
作者:Maulik N. Mungalpara、Paul G. Plieger、Gareth J. Rowlands
DOI:10.1002/adsc.202001429
日期:2021.2.16
chiral pyridyl[2.2]paracyclophanes were prepared by the palladium‐catalyzed desulfinative cross‐coupling of bromo[2.2]paracyclophanes and pyridine sulfinate salts. Pyridine‐substituted [2.2]paracyclophanes are useful building blocks in the preparation of catalysts, functionalized materials, and luminescent molecules. Yet the synthesis of many pyridine‐substituted [2.2]paracyclophanes is more challenging
Synthesis of Cyclophanes with Planar and Helical Chirality
作者:Xiao Liu、Yudao Ma、Wenzeng Duan、Fuyan He、Lei Zhao、Chun Song
DOI:10.1021/jo102538y
日期:2011.3.18
Novel helical macrocyclic imines derived from planar chiral [2.2]paracyclophane were synthesized. The chiroptical properties of the enantiopure compounds were investigated and their absolute configurations were assigned.
Synthesis of Mono‐, Di‐, Tri‐, and Tetra‐cationic Pyridinium and Vinylpyridinium Modified [2.2]Paracyclophanes: Modular Receptors for Supramolecular Systems
Modular Scaffolds for Supramolecular Systems: In this report, a new series of mono-, di-, tri-, and tetra-cationic pyridinium and vinylpyridinium modified [2.2]paracyclophanes (PCPs) is described. On N-methylation, the 3D PCPs bearing (cationic) pyridyl and vinylpyridinium functionalities have been demonstrated as efficient molecular receptors for application in supramolecular systems. The PCPs on
超分子系统的模块化支架:在本报告中,描述了一系列新的单、二、三和四阳离子吡啶鎓和乙烯基吡啶鎓改性的[2.2]对环芳烷(PCP)。在N-甲基化方面,带有(阳离子)吡啶基和乙烯基吡啶鎓功能的 3D PCP 已被证明是在超分子系统中应用的有效分子受体。 PCP接枝光响应性偶氮苯(−N=N−)功能核作为侧基,赋予光敏性,可在照射下远程转化,提供光控智能分子功能。