Created Using the Rsc Communication Template (ver. 2.1) - See Www.rsc.org/electronicfiles for Details
نویسندگان
چکیده
Calix[4]pyrroles such as meso-octamethylcalix[4]pyrrole 1 have been extensively studied as anion and ion-pair receptors over recent years. Subsequently ‘strapped’ calix[4]pyrroles, pioneered by Lee and Sessler, have been synthesised that contain a single linker between distal meso-positions. These compounds have increased 15 affinity for anions relative to the parent macrocycle. Recently there has been increased interest in CH hydrogen bond donors and in particular in the use of 1,2,3-triazoles formed via ‘click’ chemistry as hydrogen bond donor groups for anion complexation. We decided to use ‘click’ chemistry to introduce a triazole strap into a 20 calix[4]pyrrole and measure the anion binding and transport properties of the resulting hybrid pyrrole/triazole anion receptor 2 (Figure 1).
منابع مشابه
CREATED USING THE RSC CHEMCOMM TEMPLATE - SEE WWW.RSC.ORG/ELECTRONICFILES FOR DETAILS Room temperature borylation of arenes and heteroarenes by stoichiometric amounts of pinacolborane catalyzed by iridium complexes in an inert solvent†
متن کامل
Mesoporous silica nanoparticles: structural design and applications
The structural properties of mesoporous silica nanoparticles are reviewed. Different strategies for the introduction of functional groups are considered. Based on the architectural features of the material, the functionalization at defined regions of the particles is described, along with the properties emerging from the corresponding site-specific modifications of their chemistry. Many applica...
متن کاملRSC remodeling of oligo-nucleosomes: an atomic force microscopy study
The 'remodels structure of chromatin' (RSC) complex is an essential chromatin remodeling factor that is required for the control of several processes including transcription, repair and replication. The ability of RSC to relocate centrally positioned mononucleosomes at the end of nucleosomal DNA is firmly established, but the data on RSC action on oligo-nucleosomal templates remains still scarc...
متن کاملSurfactant-free synthesis of hollow mesoporous organosilica nanoparticles with controllable particle sizes and diversified organic moieties
Department of Chemical System Engineerin Bunkyo-ku, Tokyo 113-8656, Japan. E-mail: † Electronic supplementary information ( the SN templates, additional FE-SEM ima MAS NMR and FT-IR spectra of CS-SN44 scattering results, additional FE-SEM nanoparticles, and comparisons betw isotherms. See DOI: 10.1039/c6ra22926c ‡ Present address: Department of Applie Ohkubo, Shinjuku-ku, Tokyo 169-8555, Ja Cit...
متن کاملRSC Communication Template (Version 3.2)
Aromatic azaheterocycles are key components in a large number of bioactive molecules. In particular, the electron-deficient pyrazine nucleus is present in small molecule drugs which exhibited antitumoral, antiviral, and enzyme inhibitory activities, 15 among others. Besides, the fragrance and agricultural industries take advantage of the pyrazine core. On the other hand, gold complexes continue...
متن کامل