2,3-Dibutoxynaphthalene-based tetralactam macrocycles for recognizing precious metal chloride complexes

• Li-Li Wang,
• Yi-Kuan Tu,
• Huan Yao and
• Wei Jiang

Beilstein J. Org. Chem. 2019, 15, 1460–1467, doi:10.3762/bjoc.15.146

• Li-Li Wang Yi-Kuan Tu Huan Yao Wei Jiang Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Xueyuan Boulevard 1088, Shenzhen 518055, China 10.3762/bjoc.15.146 Abstract Two new tetralactam macrocycles with 2,3-dibutoxynaphthalene groups as

• ]. Tetralactam macrocycles with four amide NH residues have been studied for ca. three decades and used in a wide range of fields including molecular recognition, optical sensing, molecular machine etc. [2][3][4][5][6][7][8][9][10][11][12][13]. The amide N−H groups directed into the cavity could form hydrogen

• tetralactam macrocycles [14][15][16]. The Smith group has used tetralactam macrocycles to encapsulate and stabilize deep-red fluorescent squaraine dyes for biomedical applications [17][18][19][20]. By introducing water-soluble groups to tetralactam macrocycles, Davis and co-workers realized selective

Molecular recognition using tetralactam macrocycles with parallel aromatic sidewalls

• Dong-Hao Li and
• Bradley D. Smith

Beilstein J. Org. Chem. 2019, 15, 1086–1095, doi:10.3762/bjoc.15.105

• Dong-Hao Li Bradley D. Smith Department of Chemistry and Biochemistry, University of Notre Dame, 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States 10.3762/bjoc.15.105 Abstract This review summarizes the supramolecular properties of tetralactam macrocycles that have parallel

• have been studied for several decades as hosts for various charged and neutral guest molecules [14][15], and in this review article, we focus on the specific group of tetralactam macrocycles shown in Scheme 1. These structures are all [2 + 2] macrocycles comprised of two 1,3-aryl dicarboxamide bridging

• (Figure 2d) [34]. 3. Guests of tetralactam macrocycles 3.1. Biscarbonyls and close analogues The first attempt to prepare tetralactam A employed a chemical reaction that mixed isophthaloyl dichloride (1) and 1,4-xylylenediamine (2) [27]. This procedure only produced a small amount of the [2 + 2

Synthesis of multivalent host and guest molecules for the construction of multithreaded diamide pseudorotaxanes

• Nora L. Löw,
• Egor V. Dzyuba,
• Boris Brusilowskij,
• Lena Kaufmann,
• Elisa Franzmann,
• Wolfgang Maison,
• Emily Brandt,
• Daniel Aicher,
• Arno Wiehe and
• Christoph A. Schalley

Beilstein J. Org. Chem. 2012, 8, 234–245, doi:10.3762/bjoc.8.24

• wheel precursors. Keywords: multivalency; pseudorotaxanes; Sonogashira coupling; supramolecular chemistry; tetralactam macrocycles; Introduction Synthetic supramolecular complexes have the great potential to put those concepts to the test that govern much of the noncovalent chemistry in nature. Among

• this case to acids and bases, which induce motion of the wheel and axle components relative to each other. Tetralactam macrocycles (TLMs) [65][66] have widely been used in the synthesis of amide catenanes and rotaxanes [85][86][87][88][89][90][91][92] and represent excellent hosts for dicarbonyl