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Tunable organic particles:An efficient approach from solvent-dependent Schiff base macrocycles 被引量:1
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作者 Ying Xiong Chao Huang +3 位作者 Hongjuan Liu Rui Yi bi-xue zhu Xin-Long Ni 《Chinese Chemical Letters》 SCIE CAS CSCD 2021年第11期3522-3525,共4页
The synthesis of cyclopolymers upon controlling the degree of macrocyclic polymerization,followed by the discovery of new properties has attracted increasing attention in supramolecular chemistry.Herein,a Schiff-base ... The synthesis of cyclopolymers upon controlling the degree of macrocyclic polymerization,followed by the discovery of new properties has attracted increasing attention in supramolecular chemistry.Herein,a Schiff-base condensation method performed at room temperature was used to control the formation of[1+1]and[2+2]macrocycles.In pure MeOH,the isomer[1+1]macrocycles were synthesized and organic particles such as dendritic,rods,and solid microspheres were directly precipitated from the reaction solution.The[1+1]macrocycles can be efficiently converted into their corresponding[2+2]macrocycles accompanied by the tunable morphology of the organic particles when n-hexane was added to the MeOH solution.Further studies showed that these organic particles have potential application toward the selective removal of Cd^(2+)ions with different adsorption ability in MeOH solution. 展开更多
关键词 Schiff base Organic particles MACROCYCLE Noncovalent interaction SELF-ASSEMBLY
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One-pot synthesis of [1+1] and 62-membered [2+2] Schiff base macrocycles 被引量:1
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作者 Fang-Fang Wang Ya-Xin Deng +2 位作者 Chao Huang Qi-Long Zhang bi-xue zhu 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第9期1551-1553,共3页
New [1+1] and 62-membered [2+2] Schiff base macrocycles containing a 2,6-diamidopyridine subunit have been synthesized by condensation reaction of the precursors pyridine-2,6-dicarboxamide and 1,10- bis(2'-formylp... New [1+1] and 62-membered [2+2] Schiff base macrocycles containing a 2,6-diamidopyridine subunit have been synthesized by condensation reaction of the precursors pyridine-2,6-dicarboxamide and 1,10- bis(2'-formylphenyloxy)decane in the presence of phosphoric acid via a one-pot process. The cyclo- condensed products were effectively isolated by gel column chromatography and characterized by 1H NMR, FTIR, mass spectrometry and X-ray analysis. The two macrocycles have a twisted structure, and not an open 'circular' conformation in the solid state. 展开更多
关键词 Macrocycles Schiff base One-pot synthesis Crystal structure
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Synthesis and characterization of macrocyclic compounds with a hydroxyl functional group 被引量:1
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作者 Min Ou Chun zhu +1 位作者 Qi-Long Zhang bi-xue zhu 《Chinese Chemical Letters》 SCIE CAS CSCD 2013年第10期869-872,共4页
A novel [1+1] Schiff-base macrocyclic compound 3 has been synthesized from precursor 1, 1,3-bis(2'- formylphenoxy)-2-propanol, and precursor 2, resorcinol-bis(4-aminophenyl)ether, via condensation and cyclizacti... A novel [1+1] Schiff-base macrocyclic compound 3 has been synthesized from precursor 1, 1,3-bis(2'- formylphenoxy)-2-propanol, and precursor 2, resorcinol-bis(4-aminophenyl)ether, via condensation and cyclizaction using Ba2+ as template. The macrocycle 3 was further reduced giving saturated macrocycle 4. The structures of 3 and 4 were characterized by elemental analysis, ~H NMR, IR, and MS spectra, and their structures were determined via single crystal X-ray diffraction studies. X-ray diffraction analysis revealed that the macrocyclic compound 3 has a folded conformation, and the corresponding reduced product 4 adopts a twisted and folded conformation due to its flexible nature. ~ 2013 Bi-Xue Zhu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. 展开更多
关键词 Schiff base Macrocyclic compound Synthesis Structure
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