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Wang X, Kohl B, Rominger F, Elbert SM, Mastalerz M. A Triptycene-Based Enantiopure Bis(Diazadibenzoanthracene) by a Chirality-Assisted Synthesis Approach. Chemistry 2020; 26:16036-16042. [PMID: 32648593 PMCID: PMC7756852 DOI: 10.1002/chem.202002781] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Indexed: 12/14/2022]
Abstract
By applying a chirality-assisted synthesis (CAS) approach enantiopure diaminodibromotriptycenes were converted to rigid chiral helical diazadibenzoanthracenes, which show besides pronounced Cotton effects in circular dichroism spectra higher photoluminescence quantum yields as comparable carbacyclic analogues. For the enantiopure building blocks, a protocol was developed allowing the large scale synthesis without the necessity of separation via HPLC.
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Affiliation(s)
- Xubin Wang
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Bernd Kohl
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Frank Rominger
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Sven M. Elbert
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Michael Mastalerz
- Organisch-Chemisches InstitutRuprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
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2
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Campbell JP, Rajappan SC, Jaynes TJ, Sharafi M, Ma Y, Li J, Schneebeli ST. Enantioselective Electrophilic Aromatic Nitration: A Chiral Auxiliary Approach. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Joseph P. Campbell
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Sinu C. Rajappan
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Tyler J. Jaynes
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Mona Sharafi
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Yong‐Tao Ma
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Jianing Li
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
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3
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Campbell JP, Rajappan SC, Jaynes TJ, Sharafi M, Ma Y, Li J, Schneebeli ST. Enantioselective Electrophilic Aromatic Nitration: A Chiral Auxiliary Approach. Angew Chem Int Ed Engl 2018; 58:1035-1040. [DOI: 10.1002/anie.201811517] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 10/26/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Joseph P. Campbell
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Sinu C. Rajappan
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Tyler J. Jaynes
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Mona Sharafi
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Yong‐Tao Ma
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Jianing Li
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
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4
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Liu W, Lu X, Xue W, Samanta SK, Zavalij PY, Meng Z, Isaacs L. Hybrid Molecular Container Based on Glycoluril and Triptycene: Synthesis, Binding Properties, and Triggered Release. Chemistry 2018; 24:14101-14110. [PMID: 30044903 DOI: 10.1002/chem.201802981] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/23/2018] [Indexed: 12/11/2022]
Abstract
We designed and synthesized a "hybrid" molecular container 1, which is structurally related to both cucurbit[n]uril (CB[n]) and pillar[n]arene type receptors. Receptor 1 was fully characterized by 1 H NMR, 13 C NMR, IR, MS and X-ray single crystal diffraction. The self-association behavior, host-guest recognition properties of 1, and the [salt] dependence of Ka were investigated in detail by 1 H NMR and isothermal titration calorimetry (ITC). Optical transmittance and TEM measurements provide strong evidence that receptor 1 undergoes co-assemble with amphiphilic guest C10 in water to form supramolecular bilayer vesicles (diameter 25.6±2.7 nm, wall thickness ≈3.5 nm) that can encapsulate the hydrophilic anticancer drug doxorubicin (DOX) and the hydrophobic dye Nile red (NR). The release of encapsulated DOX or NR from the vesicles can be triggered by hexamethonium (8 c) or spermine (10) which leads to the disruption of the supramolecular vesicles.
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Affiliation(s)
- Wenjin Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P.R. China.,Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Xiaoyong Lu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Weijian Xue
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Soumen K Samanta
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Peter Y Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
| | - Zihui Meng
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P.R. China
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA
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5
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Rommelmann P, Greschner W, Ihrig S, Neumann B, Stammler HG, Gröger H, Kuck D. Combining Stereoselective Enzyme Catalysis with Chirality-Assisted Synthesis in Tribenzotriquinacene Chemistry. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800465] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Philipp Rommelmann
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
| | - Wilko Greschner
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
| | - Sarah Ihrig
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
| | - Beate Neumann
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
| | - Hans-Georg Stammler
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
| | - Harald Gröger
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
- Center for Molecular Materials (CM₂); Bielefeld University; Universitätsstr. 25 33615 Bielefeld Germany
| | - Dietmar Kuck
- Department of Chemistry; Bielefeld University; Universitätsstraße 25 33615 Bielefeld Germany
- Center for Molecular Materials (CM₂); Bielefeld University; Universitätsstr. 25 33615 Bielefeld Germany
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6
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Lu X, Samanta SK, Zavalij PY, Isaacs L. Blurring the Lines between Host and Guest: A Chimeric Receptor Derived from Cucurbituril and Triptycene. Angew Chem Int Ed Engl 2018; 57:8073-8078. [PMID: 29749674 DOI: 10.1002/anie.201803132] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/30/2018] [Indexed: 12/13/2022]
Abstract
We report the synthesis and X-ray crystal structure of a cucurbituril-triptycene chimeric receptor (1). Host 1 binds to guests typical of CB[6]-CB[8], but also binds to larger guests such as blue box (20) and the Fujita square (22). Intriguingly, the geometries of the 1⋅20 and 1⋅22 complexes blur the lines between host and guest in that both components fulfill both roles within each complex. The fluorescence output of 1 is fully quenched by the formation of complexes with pyridinium-derived guests.
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Affiliation(s)
- Xiaoyong Lu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Soumen K Samanta
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Peter Y Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
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7
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Lu X, Samanta SK, Zavalij PY, Isaacs L. Blurring the Lines between Host and Guest: A Chimeric Receptor Derived from Cucurbituril and Triptycene. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaoyong Lu
- Department of Chemistry and Biochemistry University of Maryland College Park MD 20742 USA
| | - Soumen K. Samanta
- Department of Chemistry and Biochemistry University of Maryland College Park MD 20742 USA
| | - Peter Y. Zavalij
- Department of Chemistry and Biochemistry University of Maryland College Park MD 20742 USA
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry University of Maryland College Park MD 20742 USA
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8
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Han C, Zhao D, Li T, Sun D. Stereoselective Synthesis of Pillar[4]arene[1]cis
-diepoxy-p
-dione and X-Ray Crystal Structure of Host-Guest System. Chem Asian J 2017; 12:2354-2358. [PMID: 28703485 DOI: 10.1002/asia.201700791] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/11/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Chengyou Han
- Department of Chemistry, College of Science; China University of Petroleum (East China); No. 66, Changjiang West Road Huangdao District Qingdao 266580 P.R. China
| | - Dezhi Zhao
- Department of Chemistry, College of Science; China University of Petroleum (East China); No. 66, Changjiang West Road Huangdao District Qingdao 266580 P.R. China
| | - Tian Li
- Department of Chemistry, College of Science; China University of Petroleum (East China); No. 66, Changjiang West Road Huangdao District Qingdao 266580 P.R. China
| | - Daofeng Sun
- Department of Chemistry, College of Science; China University of Petroleum (East China); No. 66, Changjiang West Road Huangdao District Qingdao 266580 P.R. China
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9
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Sharafi M, Campbell JP, Rajappan SC, Dudkina N, Gray DL, Woods TJ, Li J, Schneebeli ST. Crystal-Packing-Driven Enrichment of Atropoisomers. Angew Chem Int Ed Engl 2017; 56:7097-7101. [PMID: 28510353 DOI: 10.1002/anie.201701876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/17/2017] [Indexed: 11/10/2022]
Abstract
Crystal-packing forces can have a significant impact on the relative stabilities of different molecules and their conformations. The magnitude of such effects is, however, not yet well understood. Herein we show, that crystal packing can completely overrule the relative stabilities of different stereoisomers in solution. Heating of atropoisomers (i.e. "frozen-out" conformational isomers) in solution leads to complex mixtures. In contrast, solid-state heating selectively amplifies minor (<25 mole %) components of these solution-phase mixtures. We show that this heating strategy is successful for compounds with up to four rotationally hindered σ bonds, for which a single stereoisomer out of seven can be amplified selectively. Our results demonstrate that common supramolecular interactions-for example, [methyl⋅⋅⋅π] coordination and [C-H⋅⋅⋅O] hydrogen bonding-can readily invert the relative thermodynamic stabilities of different molecular conformations. These findings open up potential new avenues to control the folding of macromolecules.
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Affiliation(s)
- Mona Sharafi
- Department of Chemistry, The University of Vermont, Burlington, VT, 05405, USA
| | - Joseph P Campbell
- Department of Chemistry, The University of Vermont, Burlington, VT, 05405, USA
| | - Sinu C Rajappan
- Department of Chemistry, The University of Vermont, Burlington, VT, 05405, USA
| | - Natavan Dudkina
- Department of Chemistry, The University of Vermont, Burlington, VT, 05405, USA
| | - Danielle L Gray
- George L. Clark X-Ray Facility & 3M Materials Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Toby J Woods
- George L. Clark X-Ray Facility & 3M Materials Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Jianing Li
- Department of Chemistry, The University of Vermont, Burlington, VT, 05405, USA
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10
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Sharafi M, Campbell JP, Rajappan SC, Dudkina N, Gray DL, Woods TJ, Li J, Schneebeli ST. Crystal‐Packing‐Driven Enrichment of Atropoisomers. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mona Sharafi
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Joseph P. Campbell
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Sinu C. Rajappan
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Natavan Dudkina
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
| | - Danielle L. Gray
- George L. Clark X-Ray Facility & 3M Materials Laboratory University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Toby J. Woods
- George L. Clark X-Ray Facility & 3M Materials Laboratory University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Jianing Li
- Department of Chemistry The University of Vermont Burlington VT 05405 USA
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11
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Beaudoin D, Rominger F, Mastalerz M. Chirality-Assisted Synthesis of a Very Large Octameric Hydrogen-Bonded Capsule. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609073] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Daniel Beaudoin
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
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12
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Beaudoin D, Rominger F, Mastalerz M. Chirality-Assisted Synthesis of a Very Large Octameric Hydrogen-Bonded Capsule. Angew Chem Int Ed Engl 2016; 55:15599-15603. [DOI: 10.1002/anie.201609073] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Daniel Beaudoin
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
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13
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Beaudoin D, Rominger F, Mastalerz M. Synthesis and Chiral Resolution ofC3-Symmetric Tribenzotriquinacenes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600890] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel Beaudoin
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; 69120 Heidelberg Germany
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