Table of Contents |
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14 | Full Research Paper |
4 | Letter |
4 | Review |
Graphical Abstract
Figure 1: Different methodologies employed to study PPIs. The protein used for illustration is the heterodime...
Figure 2: Mechanisms of homooligomeric complex formations. a) Domain swapping of RNase A (PDB: 1A2W) [73]. The sw...
Figure 3: Parts a) and b) represent the electron densities and B-factors of TMV, respectively. The cryo-EM st...
Figure 4: Schematic of the general assembly of charged protein containers to form binary nanoparticle superla...
Graphical Abstract
Scheme 1: Overview of the synthetic methods for the carbazole-based heterohelicenes. i) Pd2dba3, xantphos, K3...
Scheme 2: Synthetic strategy for the carbazole-based [6]helicenes fused with an azine ring.
Scheme 3: Sonogashira coupling of compound 4b with phenylacetylene. i) Pd(PPh3)2Cl2, CuI, iPr2NH, DMSO, 80 °C...
Figure 1: Molecular structure of carbazole-based [6]helicenes 10a (a), 10b (b) and 10c (c) (X-ray data).
Figure 2: Crystal packing of carbazole-based [6]helicenes 10a (a, b), 10b (c,d) and 10c (e). Hydrogen atoms a...
Graphical Abstract
Figure 1: (A) Fluorescence spectra of OST (c = 3.0 × 10−5 mol∙L−1) upon the addition of various metal ions. (...
Figure 2: Metal ion selectivity of OST–Hg2+ (c = 3.0 × 10−5 mol∙L−1) in the presence of 1.2 × 10−4 mol∙L−1 of...
Figure 3: Fluorescence spectra of OST (c = 3 × 10−5 mol∙L−1) in H2O/CH3OH 97:3, v/v in the presence of an inc...
Figure 4: The standard Job curve of mercury ions to OST (c = 3.0 × 10−5 mol∙L−1) at 406 nm (pH 7.0, H2O/CH3OH...
Figure 5: Mass spectrum of the probe with Hg2+.
Figure 6: 1H NMR titration spectra recorded for OST (c = 5 × 10−4 mol∙L−1) during the addition of different m...
Figure 7: The binding mode of OST and Hg2+.
Graphical Abstract
Figure 1: Homotropane (azabicyclononane) systems.
Figure 2: Alkaloids (−)-adaline (1), (+)-euphococcinine (2) and (+)-N-methyleuphococcinine (3).
Scheme 1: Synthetic strategies before 1995.
Scheme 2: Synthesis (±)-adaline (1) and (±)-euphococcinine (2). Reagents and conditions: i) 1. dihydropyran, ...
Scheme 3: Synthesis (+)-euphococcinine (2). Reagents and conditions: i) H2O2, SeO2 (cat), acetone, rt, 88%; i...
Scheme 4: Synthesis (+)-euphococcinine (2). Reagents and conditions: i) 2,4-bis(4-phenoxyphenyl)-1,3-dithia-2...
Scheme 5: Synthesis of (±)-euphococcinine precursor (±)-42. Reagents and conditions: i) Bu3SnH, AIBN, toluene...
Scheme 6: Synthesis of (−)-adaline (1). Reagents and conditions: i) LiH2NBH3, THF, 40 °C, 88%; ii) TPAP, NMO,...
Scheme 7: Synthesis of (−)-adaline (1) and (−)-euphococcinine (2). Reagents and conditions: i) 1. BuLi, t-BuO...
Scheme 8: Synthesis of (−)-adaline (1). Reagents and conditions: i) Ref. [52]; ii) Et3N, TBDMSOTf, CH2Cl2, 0 °C t...
Scheme 9: Synthesis of (+)-euphococcinine (2). Reagents and conditions: i) 1. Cp2ZrCl2,AlMe3, CH2Cl2; 2. p-me...
Scheme 10: Synthesis of (−)-adaline 1. Reagents and conditions: i) 1. CuBr.DMS, Et2O/DMS, -42 ºC; 2. 1-heptyne...
Scheme 11: Synthesis of (−)-euphococcinine (2) and (−)-adaline (1). Reagents and conditions: i) 102, KHMDS, Et2...
Scheme 12: Synthesis of N-methyleuphococcinine 3. Reagents and conditions: i) 108 (1.5 equiv), 3,5-di-F-C6H3B(...
Graphical Abstract
Figure 1: Chemical structure of compound 1 and UV–vis spectra in an aggregating aqueous medium and in the dis...
Figure 2: Transmission electron microscopy (TEM) images (left, zoomed-out and zoomed-in; 1 × 10−4 M solutions...
Figure 3: Cryo-TEM images of a 1 × 10−4 M solution of 1 (5% THF) and the corresponding molecular model as wel...
Figure 4: Cryo-TEM images of 1 × 10−4 M compound 1 in THF/water solutions after one minute of aging. A) 5% TH...
Figure 5: Transient kinetics at different laser powers probed at 755 nm (1 × 10−4 M solution at pH 10): A) 5%...
Graphical Abstract
Scheme 1: Cartoon representative for rac-TBPP-based CPL-active systems fabricated through two strategies.
Figure 1: Ground-state and excited-state chirality of R2N-TBPP and S2N-TBPP. (a) CD spectra of R2N-TBPP and S...
Figure 2: (a) Fluorescence spectra of rac-TBPP in solution (dash line) and in the rac-TBPP/DGG co-gels. (b) C...
Figure 3: (a) UV–vis absorption spectra of rac-TBPP and rac-TBPP/DGG co-gel (rac-TBPP/DGG = 1:80). (b) FTIR s...
Graphical Abstract
Figure 1: The inthomycins A–C (1–3) and structurally closely related compounds.
Figure 2: Syntheses of inthomycins A–C (1–3).
Scheme 1: The first total synthesis of racemic inthomycin A (rac)-1 by Whiting.
Scheme 2: Moloney’s synthesis of the phenyl analogue of inthomycin C ((rac)-3).
Scheme 3: Moloney’s synthesis of phenyl analogues of inthomycins A (rac-1) and B (rac-2).
Scheme 4: The first total synthesis of inthomycin B (+)-2 by R. J. K. Taylor.
Scheme 5: R. J. K. Taylor’s total synthesis of racemic inthomycin A (rac)-1.
Scheme 6: The first total synthesis of inthomycin C ((+)-3) by R. J. K. Taylor.
Scheme 7: The first total synthesis of naturally occurring inthomycin C ((–)-3) by Ryu et al.
Scheme 8: Preparation of E,E-iododiene (+)-84 and Z,E- iododiene 85a.
Scheme 9: Hatakeyama’s total synthesis of inthomycin A (+)-1 and inthomycin B (+)-2.
Scheme 10: Hatakeyama’s total synthesis of inthomycin C ((–)-3).
Scheme 11: Maulide’s formal synthesis of racemic inthomycin C ((rac)-3).
Scheme 12: Hale’s synthesis of dienylstannane (+)-69 and enyne (+)-82b intermediates.
Scheme 13: Hale’s total synthesis of inthomycin C ((+)-3).
Scheme 14: Hale and Hatakeyama’s resynthesis of (3R)-inthomycin C (−)-3 Mosher esters.
Scheme 15: Reddy’s formal syntheses of inthomycin C (+)-3 and inthomycin C ((−)-3).
Scheme 16: Synthesis of the cross-metathesis precursors (rac)-118 and 121.
Scheme 17: Donohoe’s total synthesis of inthomycin C ((−)-3).
Scheme 18: Synthesis of dienylboronic ester (E,E)-128.
Scheme 19: Synthesis of the alkenyl iodides (Z)- and (E)-130.
Scheme 20: Burton’s total synthesis of inthomycin B ((+)-2).
Scheme 21: Burton’s total synthesis of inthomycin C ((−)-3).
Scheme 22: Burton’s total synthesis of inthomycin A ((+)-1).
Scheme 23: Synthesis of common intermediate (Z)-(+)-143a.
Scheme 24: Synthesis of (Z)-and (E)-selective fragments (+)-145a–c.
Scheme 25: Kim’s total synthesis of inthomycins A (+)-1 and B (+)-2.
Scheme 26: Completion of total synthesis of inthomycin C ((–)-3) by Kim.
Graphical Abstract
Scheme 1: Synthetic routes towards perfluoroalkyl thioethers.
Scheme 2: Two-step synthesis of BT-SRF reagents from MBT.
Scheme 3: Plausible mechanism for the formation of thioether 3 and thionoester 4.
Scheme 4: Scope of the deoxygenative perfluoroalkylthiolation reaction using BT-SC2F5 and BT-SC3F7.
Graphical Abstract
Figure 1: Medical compounds having a difluoromethyl group.
Scheme 1: Methods for the synthesis of ethers containing fluorine substituents.
Scheme 2: The previous work reported by Yagupol’skii et al.
Scheme 3: Intramolecular 1,4-addition of 2o.
Scheme 4: Proposed reaction mechanism.
Graphical Abstract
Scheme 1: The synthesis of the C3-symmetrical tetraethylene glycol-decorated peptide amphiphile I and the azi...
Scheme 2: Synthesis of the sulfated peptide amphiphile II by copper-catalyzed azide–alkyne cyclization.
Figure 1: Analysis of the self-assembly behavior of I by A: CD-spectra of 5, 10, 25 or 50 µM aqueous solution...
Figure 2: Analysis of the supramolecular polymerization of II by A: CD-spectra of a 25 µM solution in TRIS bu...
Figure 3: Concentration-dependent relative L-selectin binding of the supramolecular polymers I and II in HEPE...
Graphical Abstract
Figure 1: a) VII systems described by Sijbesma and Meijer, featuring two ureidopyrimidone BUs which are linke...
Figure 2: a) GCP and ACP motif, as charged and neutral BUs and BINAM as precoordinating LU. b) Compounds 1, 2...
Figure 3: Synthesis of compounds 1 to 4. Reagents and conditions: i) ʟ-Boc-glutamic acid benzyl ester, HCTU, ...
Figure 4: a) 2D-screening in DMSO of the GCP derivative 1, specific viscosity vs concentration vs temperature...
Figure 5: Comparison of the specific viscosities in dependence of the temperature of the ACP derivative (oran...
Figure 6: DLS measurement of compound 2 in toluene at 25 °C, 60 °C and 100 °C.
Figure 7: Specific viscosity of compounds 2, 3 and 4 in Nynas NS8 in dependency to the temperature.
Figure 8: Specific viscosity of compound 4 in Nynas NS8 and Nexbase 3020.
Graphical Abstract
Scheme 1: Our previous efforts in the field of functionalization of sugar-derived lactams.
Figure 1: Key concepts behind the goal of this work [34].
Scheme 2: Preliminary experiment in search of a procedure for the synthesis of 2-(1H-tetrazol-5-yl)-iminosuga...
Scheme 3: Synthesis of a new class of alkaloid scaffold using the presented methodology.
Scheme 4: Synthesis of a new, chiral 2-(tetrazol-5-yl)-iminosugar based potential organocatalyst.
Scheme 5: Principle behind Woerpel’s model for prediction of the direction of nucleophile addition to oxocarb...
Scheme 6: Difference in conformational stability of glucose- and galactose-derived iminium cations and the maj...
Figure 2: ORTEP structures of compounds 3a and 3e obtained by X-ray analysis. Hydrogen atoms and benzyl group...
Figure 3: Proposed structures of compounds 5a and 2-epi-5a with 1H-1H couplings and NOE effects shown.
Scheme 7: Proposed reaction mechanism for the described Ugi–azide reaction variant.
Scheme 8: Possible pathway for spontaneous imine formation. Values reported are in kcal·mol−1.
Scheme 9: A possible path for tetrazole formation in the described conditions. Values reported are in kcal·mol...
Graphical Abstract
Figure 1: Schematic representation of the modular approach towards halogen-bonded fluorescent liquid crystals....
Figure 2: Representative POM images of NO2-C10 at 94 °C (a) and NO2-C10∙∙∙F4Az at 61.5 °C (b) upon cooling fr...
Figure 3: Comparison of the mesomorphic properties of NO2-Cn, NO2-Cn∙∙∙F4St, and NO2-Cn∙∙∙F4Az (n = 8–11). Th...
Figure 4: Graphical representation of the calculated interaction energies in kJ/mol of the XB-acceptor NO2-C1...
Figure 5: Summary of the thermal behaviour of the azo complexes with decreasing fluorination degree as observ...
Figure 6: POM images of the supramolecular assemblies NO2-C10∙∙∙F3Az (a), NO2-C10∙∙∙F2Az (b) and NO2-C10∙∙∙F2...
Figure 7: Fluorescence studies of NO2-C9∙∙∙F4St. The photographs of the solid components as well as the forme...
Figure 8: Photographs of the assemblies with different alkoxy chain lengths on the NO2-Cn moiety directly aft...
Figure 9: Temperature-dependent fluorescent images of NO2-C9∙∙∙F4St showing the enhancement of emission upon ...
Graphical Abstract
Scheme 1: Deacetylative cyclization of 3fa.
Graphical Abstract
Figure 1: Chemical structures of representative macrocycles.
Figure 2: Ba2+-induced intermolecular [2 + 2]-photocycloaddition of crown ether-functionalized substrates 1 a...
Figure 3: Energy transfer system constructed of a BODIPY–zinc porphyrin–crown ether triad assembly bound to a...
Figure 4: The sensitizer 5 was prepared by a flavin–zinc(II)–cyclen complex for the photooxidation of benzyl ...
Figure 5: Enantiodifferentiating Z–E photoisomerization of cyclooctene sensitized by a chiral sensitizer as t...
Figure 6: Structures of the modified CDs as chiral sensitizing hosts. Adapted with permission from [24], Copyrigh...
Figure 7: Supramolecular 1:1 and 2:2 complexations of AC with the cationic β-CD derivatives 16–21 and subsequ...
Figure 8: Construction of the TiO2–AuNCs@β-CD photocatalyst. Republished with permission of The Royal Society...
Figure 9: Visible-light-driven conversion of benzyl alcohol to H2 and a vicinal diol or to H2 and benzaldehyd...
Figure 10: (a) Structures of CDs, (b) CoPyS, and (c) EY. Republished with permission of The Royal Society of C...
Figure 11: Conversion of CO2 to CO by ReP/HO-TPA–TiO2. Republished with permission of The Royal Society of Che...
Figure 12: Thiacalix[4]arene-protected TiO2 clusters for H2 evolution. Reprinted with permission from [37], Copyri...
Figure 13: 4-Methoxycalix[7]arene film-based TiO2 photocatalytic system. Reprinted from [38], Materials Today Chem...
Figure 14: (a) Photodimerization of 6-methylcoumarin (22). (b) Catalytic cycle for the photodimerization of 22...
Figure 15: Formation of a supramolecular PDI–CB[7] complex and structures of monomers and the chain transfer a...
Figure 16: Ternary self-assembled system for photocatalytic H2 evolution (a) and structure of 27 (b). Figure 16 reprodu...
Figure 17: Structures of COP-1, CMP-1, and their substrate S-1 and S-2.
Figure 18: Supramolecular self-assembly of the light-harvesting system formed by WP5, β-CAR, and Chl-b. Reprod...
Figure 19: Photocyclodimerization of AC based on WP5 and WP6.
Graphical Abstract
Figure 1: Retrosynthetic disconnection of our privileged kinase scaffold 1.
Scheme 1: Reagents and conditions: (a) MeOH, DIPEA, reflux, 70%; b) TBTU, DIPEA, DMF, rt, 91%.
Scheme 2: Proposed mechanistic explanation for the liberation of the Pd catalytic cycle after addition of sac...
Scheme 3: Formation of C2–OAt ether 15 using HATU. Reagents and condtions: (a) HATU, DIPEA, DCM, rt, 16 h, ((...
Scheme 4: Proposed mechanistic pathways for the transformation of Py–OAt ethers 17 to the pyridin-2H-one 1 mo...
Scheme 5: Failure to exploit logical convergent building block 26. Reagents and conditions: a) HATU, DIPEA, D...
Scheme 6: Library route to 32. Reagents and conditions: a) 4 M HClaq, reflux, 1 h, 81%; (b) EDCI, pyridine, P...
Graphical Abstract
Scheme 1: The chemical network of reactions for 4-hydroxyflavylium (left) and the write-lock-erase cycle (rig...
Scheme 2: The building blocks used for the self-assembly in this study: pelargonidin chloride (Flavy), 1-naph...
Scheme 3: Overview of the different states of the multi-switchable system consisting of Flavy, 1N36S, and pol...
Figure 1: Top: pelargonidin cation (Flavy) and network of chemical reactions; bottom: corresponding UV–vis sp...
Figure 2: Characterization of Flavy: a) 1H NMR spectrum at pH 7.0 (form A) before and after irradiation; b) 13...
Scheme 4: Overview of the different states of the two main cycles switching the system consisting of 1N36S, F...
Figure 3: UV–vis spectroscopy of the ternary nano-assemblies for cycle I (a) and cycle II (b).
Figure 4: Dynamic light scattering: Electric field autocorrelation function g1(τ) and distribution of relaxat...
Figure 5: Static light scattering data from the assemblies of cycle I; a) A, non-irradiated, spherical partic...
Figure 6: Comparison of cycle I and cycle II in AFM.
Figure 7: a) ζ-Potential and b) effective surface charge density for cycle I; c) ζ-potential and d) effective...
Figure 8: Isothermal titration calorimetry of poly(allylamine) into the cell containing Flavy and 1N36S in aq...
Figure 9: Polar surface area of Flavy in form of A (left) and B (right).
Figure 10: Hydrodynamic radii of the nano-assemblies as function of the loading ratio: a) cycle I, b) cycle II....
Figure 11: UV–vis spectra of the nano-assemblies of cycle II at l = 0.75.
Figure 12: ζ-Potential of the nano-assemblies of cycle II depending on the concentration ratio.
Scheme 5: Different mixing orders of the assemblies. The major part of this study focuses on route i.
Graphical Abstract
Scheme 1: Synthetic protocols for the preparation of potential ligands 1–4.
Scheme 2: Reduction of diamides 1a,b and tetraamides 2a,b.
Scheme 3: Au(III) coordination conditions for ligands 5a,b and 6a,b. Coordination of 5b was unsuccessful.
Figure 1: 1H NMR study of the formation of complex 6a-Au(III) by AuCl3 coordination to ligand 6a.
Graphical Abstract
Scheme 1: Structural diversity and synthetic methods of purinylphosphonates. MWI = microwave irradiation; LG ...
Scheme 2: Synthetic routes for the formation of purinylphosphonates 4.
Scheme 3: Synthesis of phosphonates 2, 7, and 8.
Scheme 4: Synthesis of phosphonic acid monoesters 3 and 7–9 as well as phosphonic acid 10.
Figure 1: Screenings of the rate for the ester group cleavage (conversion determined by NMR spectroscopy) in ...
Scheme 5: Synthesis of 2,6-bistriazolylpurine derivatives 6a–i.
Scheme 6: SNAr–Arbuzov reaction between the bistriazolylpurines 6a–i and P(OEt)3.
Figure 2: Single-crystal X-ray analysis of diethyl (9-heptyl-2-(4-phenyl-1H-1,2,3-triazol-1-yl)-9H-purin-6-yl...
Graphical Abstract
Scheme 1: Flow generation and transformation of 2H-azirines.
Scheme 2: Flow synthesis of 2H-azirines from vinyl azides. aThe solution of vinyl azide was re-introduced twi...
Scheme 3: Mixed flow-batch approach for the preparation of functionalized NH-aziridines from vinyl azides.
Graphical Abstract
Figure 1: Molecular structures of emitters discussed in this work.
Figure 2: a) Calculated HOMO, LUMO, S1 and T1 energies, as well as HOMO and LUMO topologies of PhCF3, PhOCF3, ...
Figure 3: Calculated HOMO, LUMO, S1 and T1 energies, as well as HOMO and LUMO topologies of 2CzCF3, 2CzOCF3, ...
Figure 4: Calculated HOMO, LUMO, S1 and T1 energies, as well as HOMO and LUMO topologies of 2CzBN, 2CzTRZ, an...
Figure 5: HOMO and LUMO distribution, HONTO and LUNTO of lowest singlet (S1) and triplet excited (T1) states ...
Figure 6: HOMO and LUMO distribution, HONTO and LUNTO of lowest singlet (S1) and triplet excited (T1) states ...
Figure 7: Calculated HOMO, LUMO, S1 and T1 energies, as well as HOMO and LUMO topologies of 5CzCF3, 5CzOCF3, ...
Figure 8: Calculated HOMO, LUMO, S1 and T1 energies, as well as HOMO and LUMO topologies of 5CzBN, 5CzTRZ, an...
Figure 9: HOMO and LUMO distribution, HONTO and LUNTO of lowest singlet (S1) and triplet excited (T1) states ...
Figure 10: HOMO and LUMO distribution, HONTO and LUNTO of lowest singlet (S1) and triplet excited (T1) states ...
Figure 11: HONTOs and LUNTOs of 2CzCF3 in higher excited states (isovalue = 0.02).
Figure 12: HONTOs and LUNTOs of 5CzCF3 in higher excited states (isovalue = 0.02).
Graphical Abstract
Scheme 1: Biphenyl-derived mycotoxins.
Scheme 2: Synthesis of arylboronates 6. Conditions: a) TBSCl, DMAP, imidazole, DMF, 50 °C, 4 h (96%); b) NBS,...
Scheme 3: Synthesis of aryl bromides 9. Conditions: f) BBr3, −78 °C to rt, 18 h (71%); g) R = TBS: TBSCl, DMA...
Scheme 4: Final steps in the synthesis of biaryl 1. Conditions: h) Pd(OAc)2, SPhos, Cs2CO3, dioxane/H2O 7:1, ...