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Ossadnik D, Voss J, Godt A. Equipping 1,4,7-Triazacyclononane with Substituents via Solid-Phase Synthesis. J Org Chem 2023. [PMID: 38016917 DOI: 10.1021/acs.joc.3c01974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Metal ion complexes frequently show substituted 1,4,7-triazacyclononane (tacn) as the ligand. Besides providing donor atoms for complex formation, tacn serves as a scaffold for equipping the complex with further functional units that are needed for the complementation and electronic tuning of the metal ion coordination sphere and/or add other features, e.g., light-absorbing antennas and groups for bioconjugation. To exploit the full potential of substituted tacn, strategies for directed syntheses of NO(R1,R1,R2) and NO(R1,R2,R3), i.e., tacn with two and even three different substituents R, are needed. Herein, we report a strategy that takes advantage of solid-phase synthesis in the assembly of the precursors NO(R1,R1,H) and NO(R1,R2,H). The assembly of NO(R1,R2,H) is based on a highly selective formation of NO(Cbz,tfAc,H), with Cbz being the link between tacn and solid phase. For this, tacn was loaded onto (4-nitrophenyl carbonate)-resin, thereby forming resin-bound (rb)-tacn, which corresponds to NO(Cbz,H,H) bound to the solid phase. Treatment of rb-tacn with ethyl trifluoroacetate gave rb-NO(tfAc,H), which corresponds to NO(Cbz,tfAc,H). With rb-tacn and rb-NO(tfAc,H) in hand, a variety of NO(R1,R1,H) and NO(R1,R2,H) were prepared, showing the broad applicability of the strategy with respect to the type of substituents and of reactions (nucleophilic substitution, reductive amination, aza-Michael addition, addition to epoxides, acylation). The study also identified limitations and points for improvement.
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Affiliation(s)
- Daniel Ossadnik
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Jona Voss
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Adelheid Godt
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
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2
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Schettini R, D'Amato A, Araszczuk AM, Della Sala G, Costabile C, D'Ursi AM, Grimaldi M, Izzo I, De Riccardis F. Structural dynamism of chiral sodium peraza-macrocycle complexes derived from cyclic peptoids. Org Biomol Chem 2021; 19:7420-7431. [PMID: 34397051 DOI: 10.1039/d1ob00733e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of cyclen and hexacyclen derivatives decorated with (S)-1-phenylethyl side chains or (S)-pyrrolidine units have been prepared via a reductive approach from the corresponding cyclic peptoids containing N-(S)-(1-phenylethyl)glycine and l-proline residues. Spectroscopic and DFT studies on their Na+ complexes show that point chirality and ring size play a crucial role in controlling the structural dynamism of 1,2-diaminoethylene units and pendant arms. The detection of highly symmetric C4- and C3-symmetric metalated species demonstrates that a full understanding of the relationship between the structure and conformational properties of peraza-macrocyclic metal complexes is possible.
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Affiliation(s)
- Rosaria Schettini
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy. iizzo@unisa
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3
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Pazderová L, Kubíček V, Kotek J, Hermann P. 1,4,7‐Triazacyclononane (tacn) with
N,N
′‐bridging methylene‐bis(phosphinic acid) group and its complexes. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lucia Pazderová
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 8 128 40 Prague 2 Czech Republic
| | - Vojtěch Kubíček
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 8 128 40 Prague 2 Czech Republic
| | - Jan Kotek
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 8 128 40 Prague 2 Czech Republic
| | - Petr Hermann
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 8 128 40 Prague 2 Czech Republic
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4
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Schettini R, D'Amato A, Pierri G, Tedesco C, Della Sala G, Motta O, Izzo I, De Riccardis F. From Cyclic Peptoids to Peraza-macrocycles: A General Reductive Approach. Org Lett 2019; 21:7365-7369. [PMID: 31469569 DOI: 10.1021/acs.orglett.9b02668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Peraza-macrocycles form chelates of high thermodynamic and kinetic stability useful in diagnostic imaging (MRI, SPECT, PET), in coordination chemistry, and as catalysts. In this letter, we report an advantageous method to prepare these compounds via BH3-induced reduction of cyclic peptoids. Using this procedure, 10 homo- and heterosubstituted aza-coronands, with different sizes and side chains, have been synthesized from the corresponding cyclic oligoamides. Solid structures of free, protonated, and Na+ coordinated polyaza-derivatives have been disclosed by single-crystal X-ray diffraction analysis.
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Affiliation(s)
- Rosaria Schettini
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
| | - Assunta D'Amato
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
| | - Giovanni Pierri
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
| | - Consiglia Tedesco
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
| | - Giorgio Della Sala
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
| | - Oriana Motta
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana" , University of Salerno , via S. Allende, Baronissi , Salerno ( SA ), 84081 , Italy
| | - Irene Izzo
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
| | - Francesco De Riccardis
- Department of Chemistry and Biology "A. Zambelli" , University of Salerno , via Giovanni Paolo II, 132 , Fisciano ( SA ), 84084 , Italy
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5
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Pickel TC, Karahalis GJ, Buru CT, Bacsa J, Scarborough CC. Synthesis of Previously Inaccessible Derivatives of 1,4,7-Tri
-R-1,4,7-Triazacyclononane, Including Chiral Examples, and a Rapid Synthesis of the HCl Salts of H3
tacn and H4
dtne. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801323] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas C. Pickel
- Department of Chemistry; Emory University; 1515 Dickey Dr. 30322 Atlanta GA USA
| | | | - Cassandra T. Buru
- Department of Chemistry; Emory University; 1515 Dickey Dr. 30322 Atlanta GA USA
| | - John Bacsa
- Department of Chemistry; Emory University; 1515 Dickey Dr. 30322 Atlanta GA USA
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6
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Holub J, Meckel M, Kubíček V, Rösch F, Hermann P. Gallium(III) complexes of NOTA-bis (phosphonate) conjugates as PET radiotracers for bone imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 10:122-34. [DOI: 10.1002/cmmi.1606] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 03/19/2014] [Accepted: 03/25/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Jan Holub
- Department of Inorganic Chemistry, Faculty of Science; Charles University in Prague; Hlavova 2030 128 43 Prague 2 Czech Republic
| | - Marian Meckel
- Institute of Nuclear Chemistry; University Mainz; Fritz-Strassmann-Weg 2 55128 Mainz Germany
| | - Vojtěch Kubíček
- Department of Inorganic Chemistry, Faculty of Science; Charles University in Prague; Hlavova 2030 128 43 Prague 2 Czech Republic
| | - Frank Rösch
- Institute of Nuclear Chemistry; University Mainz; Fritz-Strassmann-Weg 2 55128 Mainz Germany
| | - Petr Hermann
- Department of Inorganic Chemistry, Faculty of Science; Charles University in Prague; Hlavova 2030 128 43 Prague 2 Czech Republic
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7
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Divalent transition metal(II) complexes of two heterocyclic ligands with pendant pyridinyl groups: Synthesis, characterization and electrochemistry. Polyhedron 2014. [DOI: 10.1016/j.poly.2013.11.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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8
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Maria Kulandai Raja Balan A, Francis Nicholas Ashok R, Vasanthi M, Prabu R, Paulraj A. Synthesis, characterization, crystal structure and biological studies on nicotinanilide based nickel(II), copper(II) and zinc(II) complexes. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.08.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Sobieściak TD, Zielenkiewicz P. Double Selective Synthetic Approach to the N-Functionalized 1,4,7-Triazacyclononane Derivatives: Chelating Compounds for Controllable Protein Orientation. J Org Chem 2010; 75:2069-72. [DOI: 10.1021/jo902504d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomasz D. Sobieściak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland
| | - Piotr Zielenkiewicz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland
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10
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Zhang Z, Mikkola S, Lonnberg H. Regio-selective synthesis of polyazacyclophanes incorporating a pendant group as potential cleaving agents of mRNA 5′-cap structure. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.08.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Ilhan S, Temel H. Synthesis and characterization of a new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,10-bis(2-formylphenyl)-1,4,7,10-tetraoxadecane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0276-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Saleh AA. Synthesis and spectroscopic studies of novel mononuclear complexes of cyclic and acyclic Schiff-base derivatives of tridentate and tetradentate coordination with some bivalent transition metal ions. J COORD CHEM 2006. [DOI: 10.1080/00958972512331334199] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Akila A. Saleh
- a Department of Chemistry , Faculty of Education, Ain Shams University , Roxy, Cairo, Egypt
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13
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Chandra S, Gupta N, Gupta R, Bawa SS. EPR, UV-vis, magnetic, spectral studies and electrochemical behaviour of mononuclear transition metal complexes derived from novel hexa-aza-macrotricyclic ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 62:552-6. [PMID: 16257758 DOI: 10.1016/j.saa.2005.01.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2004] [Accepted: 01/13/2005] [Indexed: 05/05/2023]
Abstract
Aza-macrocyclic complexes have gained importance because of their pharmacological properties. Hexa-aza-macrocycles containing glutarimide efficiently coordinate as hexa-dentate ligand, to give complexes of Cu(II) possessing tetragonal structure and Mn(II), Co(II) and Ni(II) metal ions that are essentially octahedral. Spectroscopic, and chemical characterizations of these systems are presented in this article. For Ni(II) complexes results on electron transfer processes measured by cyclic voltammetry and colourimetry have been studied.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College (University of Delhi), J.L. Nehru Marg, New Delhi 110002, India
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14
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Battle AR, Spiccia L. Molecular structure and hydrolytic stability amidinium salts derived from triazatricyclo[5.2.1.04,10]decane. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.05.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Anda C, Bencini A, Berni E, Ciattini S, Chuburu F, Danesi A, Giorgi C, Handel H, Le Baccon M, Paoletti P, Tripier R, Turcry V, Valtancoli B. Mono- and Dinuclear CuII and ZnII Complexes of Cyclen-Based Bis(macrocycles) Containing Two Aminoalkyl Pendant Arms of Different Lengths. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200400896] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Tei L, Bencini A, Blake AJ, Lippolis V, Perra A, Valtancoli B, Wilson C, Schröder M. Co-ordination chemistry of amino pendant arm derivatives of 1,4,7-triazacyclononane. Dalton Trans 2004:1934-44. [PMID: 15252580 DOI: 10.1039/b404312j] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The binding properties of 1,4,7-triazacyclononane ([9]aneN3) to metal cations can be adapted through sequential functionalisation of the secondary amines with aminoethyl or aminopropyl pendant arms to generate ligands with increasing numbers of donor atoms. The new amino functionalised pendant arm derivative of 1,4,7-triazacyclononane ([9]aneN3), L1, has been synthesised and its salt [H2L1]Cl2 characterised by X-ray diffraction. The protonation constants of the ligands L1-L4 having one, two or three aminoethyl or three aminopropyl pendant arms, respectively, on the [9]aneN3 framework, and the thermodynamic stabilities of their mononuclear complexes with CuII and ZnII have been investigated by potentiometric measurements in aqueous solutions. In order to discern the protonation sites of ligands L1-L4, 1H NMR spectroscopic studies were performed in D2O as a function of pH. While the stability constants of the CuII complexes increase on going from L1 to L2 and then decrease on going from L2 to L3 and L4, those for ZnII complexes increase from L1 to L3 and then decrease for L4. The X-ray crystal structures of the complexes [Cu(L1)(Br)]Br, [Zn(L1)(NO3)]NO3, [Cu(L2)](ClO4)2, [Ni(L2)(MeCN)](BF4)2, [Zn(L4)](BF4)2.MeCN and [Mn(L4)](NO3)2.1/2H2O have been determined. In both [Cu(L1)(Br)]Br and [Zn(L1)(NO3)]NO3 the metal ion is five co-ordinate and bound by four N-donors of the macrocyclic ligand and by one of the two counter-anions. The crystal structures of [Cu(L2)](ClO4)2 and [Ni(L2)(MeCN)](BF4)2 show the metal centre in slightly distorted square-based pyramidal and octahedral geometry, respectively, with a MeCN molecule completing the co-ordination sphere around NiII in the latter. In both [Zn(L4)](BF4)2.MeCN and [Mn(L4)](NO3)2.1/2H2O the metal ion is bound by all six N-donors of the macrocyclic ligand in a distorted octahedral geometry. Interestingly, and in agreement with the solution studies and with the marked preference of CuII to assume a square-based pyramidal geometry with these types of ligands, the reaction of L4 with one equivalent of Cu(BF4)2.4H2O in MeOH at room temperature yields a square-based pyramidal five co-ordinate CuII complex [Cu(L6)](BF4)2 where one of the three propylamino pendant arms of the starting ligand has been cleaved to give L6.
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Affiliation(s)
- Lorenzo Tei
- Dipartimento di Chimica Inorganica ed analitica, University of Cagliari, Complesso Universitario di Monserrato, S. S. 554 Bivio per Sestu, 09042 (CA), Italy
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17
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Chong HS, Brechbiel MW. A Short and Efficient Synthesis of Mono-substituted 1,4,7-Triazacyclononanes. SYNTHETIC COMMUN 2003. [DOI: 10.1081/scc-120017190] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Electrocatalytic reduction of CO2 by aza-macrocyclic complexes of Ni(II), Co(II), and Cu(II). Theoretical contribution to probable mechanisms. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00942-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Canales J, Ramirez J, Estiu G, Costamagna J. Bis-bipyridine hexa-aza-macrocycle complexes of zinc(II) and nickel(II) and the catalytic reduction of carbon dioxide. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00574-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Patra AK, Ray M, Mukherjee R. Magneto–structural studies of monohydroxo-bridged dicopper(II) complexes M[Cu2L2(OH)]·2H2O (M=Na+ (1) and K+ (2); H2L=2,6-bis[N-(phenyl)carbamoyl]pyridine). Effect of CuOHCu bridge angle on antiferromagnetic coupling. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00390-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Costamagna J, Ferraudi G, Matsuhiro B, Campos-Vallette M, Canales J, Villagrán M, Vargas J, Aguirre M. Complexes of macrocycles with pendant arms as models for biological molecules. Coord Chem Rev 2000. [DOI: 10.1016/s0010-8545(99)00165-4] [Citation(s) in RCA: 150] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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An efficient one-pot route to symmetrically and unsymmetrically substituted 1,4,7-triazacyclononanes also results in the isolation of a stable macrocyclic aminal. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)01984-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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New cyclam-type copper(II) complexes with amide molecular padlock: synthesis, properteis and crystal structure. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(98)00196-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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