54523-47-6Relevant articles and documents
Synthesis, Photophysical and Supramolecular Properties of a π-Conjugated Molecular Crown Containing a Pentagonal Unit: A Model Compound for Fullerene C 240
Du, Pingwu,Huang, Qiang,Liu, Huiqing,Wang, Jinyi,Wang, Shengda,Wu, Yayu,Zhou, Yu
, p. 2535 - 2540 (2020)
The total synthesis of carbon onions is a significant challenge in the fields of materials science and organic chemistry. To date, the synthesis of even a fragment of fullerene C 240and its smallest carbon onion C 60?C 240remains poorly explored. Herein, we demonstrate a bottom-up strategy to produce a novel π-extended molecular crown-shaped molecule (MC3) containing curved pentagonal and hexagonal units. This molecular crown represents a curved model compound for fullerene C 240and is fully characterized by NMR, mass spectrometry, UV-vis absorption, and from its emission spectra. Its supramolecular host-guest interaction with fullerene C 60is also investigated. MC3 and C 60?MC3 can potentially be employed as seeds or templates for the bottom-up synthesis of fullerene C 240and the carbon onion C 60?C 240, respectively.
Catalytic Asymmetric (3 + 3) Cycloaddition of Oxyallyl Zwitterions with α-Diazomethylphosphonates
Liu, Yan,Peng, Xian,Peng, Yungui,She, Rui,Zhou, Xin
supporting information, p. 7295 - 7300 (2021/10/01)
The unique structure of oxyallyls represents a significant challenge for their catalytic asymmetric applications. Herein, an unprecedented chiral imidodiphosphoric acid-catalytic enantioselective (3 + 3) cycloaddition between oxyallyl zwitterions generate
Triphenylene-Enchained Perfluorocyclobutyl Aryl Ether Polymers: A Modular Synthetic Route to Processable Thermoplastics Approaching Upper Limit Tgand Photostability
Athukorale, Sumudu,Borrego, Ernesto I.,Donnadieu, Bruno,Farajidizaji, Behzad,Jazi, Mehdi,Pittman, Charles U.,Smith, Dennis W.
, p. 7666 - 7672 (2021/09/02)
Triphenylene-containing trifluorovinyl ether monomers prepared from 2,3-disubstituted-bis-1,4-(p-bromophenyl)triphenylene core building blocks undergo thermal step-growth polymerization (Ph2O, 180 °C), affording perfluorocyclobutyl polymers with unprecede