pyrrole (PY)

(1) Sequential multicomponent site-selective synthesis of 4-iodo and 5-iodopyrrole-3-carboxaldehydes from a common set of starting materials by tuning the conditions (Org. Biomol. Chem. 2020, 18, 1155−1164; 10.1039/C9OB02501D) Sn, PY

(2) Pyridine-Diketopyrrolopyrrole-Based Novel Metal-Free Visible-Light Organophotoredox Catalyst for Atom-Transfer Radical Polymerization (J. Phys. Chem. A 2020, 124, 1068−1075; 10.1021/acs.jpca.9b10404) CRP, WLED, St, FLT, Et, FL, R, CT, Sn, In, pyr, MMA, VL, ATRP, RP, EMA, expt., ATR, polymn., PY

(3) Relation between the Electronic Properties of Regioregular Donor–Acceptor Terpolymers and Their Binary Copolymers (J. Phys. Chem. C 2020, 124, 3503−3516; 10.1021/acs.jpcc.9b11562) av., VOC, BHJSC, HJSC, HJ, BHJ, Et, Sn, QC, CP, OCV, 107-92-6, HSC, expt., PY

(4) Fabrication and Characterization of Drug-Loaded Conductive Poly(glycerol sebacate)/Nanoparticle-Based Composite Patch for Myocardial Infarction Applications (ACS Appl. Mater. Interfaces 2020, 12, 6899−6909; 10.1021/acsami.9b21066) MI, TE, EC, Sn, Mat, PG, GLY, PP, PPY, expt., COL, PGS, PY

(5) Green synthesis of polypyrrole tubes using curcumin template for excellent electrochemical performance in supercapacitors (J. Mater. Chem. A 2020, 8, 3186−3202; 10.1039/C9TA11934E) PP, PPY, polymn., PY

pyronine (PY)

(1) Synthesis of Carboxy ATTO 647N Using Redox Cycling for Xanthone Access (Org. Lett. 2020, 22, 381−385; 10.1021/acs.orglett.9b03981) g, PY

(2) Improved Xanthone Synthesis, Stepwise Chemical Redox Cycling (Org. Lett. 2019, 21, 206−209; 10.1021/acs.orglett.8b03661) PY, RD, I

(3) Rosamine with pyronine-pyridinium skeleton: unique mitochondrial targetable structure for fluorescent probes (Analyst 2018, 143, 1813−1819; 10.1039/C7AN02041D) PY, B, FL, H, py, em, Nu, HP, H2O2

(4) The pH-influenced PET processes between pyronine and different heterocycles (Org. Biomol. Chem. 2017, 15, 8402−8409; 10.1039/C7OB02247F) TD, PY, FL, N, Het, em, IMD, imH, Him, imid, IND, DFT, TDDFT

(5) Reversible ratiometric detection of highly reactive hydropersulfides using a FRET-based dual emission fluorescent probe (Chem. Sci. 2017, 8, 1134−1140; 10.1039/C6SC03856E) PY, RE, Cys, RET, FL, C, em, S, ET, FRET, Nu, RSS

pyridinium (py)

(1) Nickel-Catalyzed Deaminative Acylation of Activated Aliphatic Amines with Aromatic Amides via C–N Bond Activation (Org. Lett. 2020, 22, 950−955; 10.1021/acs.orglett.9b04497) lb, py

(2) Chalcone-Based Pyridinium Salts and Their Diastereoselective Dearomatization To Access Bibridged Benzoazepines (Org. Lett. 2020, 22, 873−878; 10.1021/acs.orglett.9b04398) 94-41-7, py

(3) A catalyst-free bis(triflyl)ethylation/benzannulation reaction: rapid access to carbazole-based superacidic carbon acids from alkynols (Chem. Commun. 2020, 56, 1795−1798; 10.1039/C9CC08930F) py

(4) Incorporating Thiourea into Fluorescent Probes: A Reliable Strategy for Mitochondrion-Targeted Imaging and Superoxide Anion Tracking in Living Cells (Anal. Chem. 2020, 92, 2824−2829; 10.1021/acs.analchem.9b05320) esp., lb, H, SOD, py

(5) Base-Promoted C–C Bond Activation Enables Radical Allylation with Homoallylic Alcohols (J. Am. Chem. Soc. 2020, 142, 2609−2616; 10.1021/jacs.9b12343) CS, R, Al, py

pyrazolone (PY)

(1) Tuned structure and DNA binding properties of metal complexes based on a new 4-acylpyrazolone derivative (New J. Chem. 2020, 44, 2281−2290; 10.1039/C9NJ05948B) lb, PY

(2) Enantioselective Synthesis of Spirorhodanine-Pyran Derivatives via Organocatalytic [3 + 3] Annulation Reactions between Pyrazolones and Rhodanine-Derived Ketoesters (Org. Lett. 2020, 22, 1028−1033; 10.1021/acs.orglett.9b04571) Sp, PY

(3) Copper complexes of pyrazolone-based Schiff base ligands: Synthesis, crystal structures and antibacterial properties (J. Mol. Struct. 2020, 1205, 127603−; https://doi.org/10.1016/j.molstruc.2019.127603) det., HL1, 107-11-9, ANI, Et, Ac, Al, PY

(4) The selective condensation of pyrazolones to isatins in aqueous medium (Tetrahedron 2020, 76, 130916−; https://doi.org/10.1016/j.tet.2019.130916) Fe, Sn, IND, PY

(5) Asymmetric Organocatalytic [4 + 1] Annulations Involving a Polarity Reversal Process: A Tandem Catalytic Approach to Highly Functionalized Spiropyrazolone Derivatives (J. Org. Chem. 2020, 85, 594−602; 10.1021/acs.joc.9b02684) C, as, PY

perylene (PY)

(1) Dynamic-Covalent Hydrogel with NIR-Triggered Drug Delivery for Localized Chemo-Photothermal Combination Therapy (Biomacromolecules 2020, 21, 556−565; 10.1021/acs.biomac.9b01290) PTT, HA, PS, PT, DO, Doxo, DOX, H, Sn, O, VC, AA, NP, IH, NIR, sens, curr., PY

(2) Highly Selective Gas Sensors Based on Graphene Nanoribbons Grown by Chemical Vapor Deposition (ACS Appl. Mater. Interfaces 2020, 12, 7392−7402; 10.1021/acsami.9b13946) at., lb, EF, NRB, GNR, 109-73-9, Et, PrOH, O, CH3CH2OH, Bu, DEA, TEtA, TriEA, NH2, CVD, decompn., CH3OH, VOC, PY

(3) A perylene diimide-based near-IR ratiometric sensor for detection of Cu2+ ions: ensemble for discrimination of CN− and S2− ions (Anal. Methods 2020, 12, 758−767; 10.1039/C9AY02726B) PY

(4) XCage: A Tricyclic Octacationic Receptor for Perylene Diimide with Picomolar Affinity in Water (J. Am. Chem. Soc. 2020, 142, 3165−3173; 10.1021/jacs.9b12982) esp., CP, FL, em, St, Sn, ET, ABS, PY

(5) Increased Temperature and Turbulence Alter the Effects of Leachates from Tire Particles on Fathead Minnow (Pimephales promelas) (Environ. Sci. Technol. 2020, 54, 1750−1759; 10.1021/acs.est.9b05994) BaP, PhA, GC, Fe, SERS, Ra, est., C, em, anth, ANT, AN, HC, FHM, NpH, arene, CHR, PAH, PY

pyrene (Py)

(1) Reticulating 1D Ribbons into 2D Covalent Organic Frameworks by Imine and Imide Linkages (J. Am. Chem. Soc. 2020, 142, 2771−2776; 10.1021/jacs.9b13971) For, NH2, Pyr, Py

(2) Synthesis of 1,6-disubstituted pyrene-based conjugated microporous polymers for reversible adsorption and fluorescence sensing of iodine (New J. Chem. 2020, 44, 2312−2320; 10.1039/C9NJ05509F) CMP, Pyr, Py

(3) Conjugated polymer self-assembled with graphene: Synthesis and electrochemical 1-hydroxypyrene sensor (Polymer 2020, 188, 122139−; https://doi.org/10.1016/j.polymer.2019.122139) LBL, GCE, Et, C, EC, HC, DL, CP, arene, PAH, SA, Pyr, Py

(4) Inducing Charge Separation in Solid-State Two-Dimensional Hybrid Perovskites through the Incorporation of Organic Charge-Transfer Complexes (J. Phys. Chem. Lett. 2020, 11, 824−830; 10.1021/acs.jpclett.9b03746) BE, sepd., CTC, O, CT, CN, SS, Sn, TA, CS, BDE, FSTA, ABS, C2H6, expt., Pyr, Py

(5) Electron Diffraction of Pyrene Nanoclusters Embedded in Superfluid Helium Droplets (J. Phys. Chem. Lett. 2020, 11, 724−729; 10.1021/acs.jpclett.9b03603) He, LS, det., ED, NC, SM, Sn, Pyr, Py

pyridine (Py)

(1) Selective synthesis of pyridyl pyridones and oxydipyridines by transition-metal-free hydroxylation and arylation of 2-fluoropyridine derivatives (Org. Biomol. Chem. 2020, 18, 1185−1193; 10.1039/C9OB02661D) Pyr, pyr, TM, TMF, Py

(2) Efficient trinuclear Ru(II)–Re(I) supramolecular photocatalysts for CO2 reduction based on a new tris-chelating bridging ligand built around a central aromatic ring (Chem. Sci. 2020, 11, 1556−1563; 10.1039/C9SC04532E) Sn, pyr, Py

(3) Pyridine-Diketopyrrolopyrrole-Based Novel Metal-Free Visible-Light Organophotoredox Catalyst for Atom-Transfer Radical Polymerization (J. Phys. Chem. A 2020, 124, 1068−1075; 10.1021/acs.jpca.9b10404) CRP, WLED, St, FLT, Et, FL, R, CT, Sn, In, pyr, MMA, VL, ATRP, RP, EMA, expt., ATR, polymn., PY, LE, Me, Py

(4) Understanding the Inhibition of the Shuttle Effect of Sulfides (S ≤ 3) in Lithium–Sulfur Batteries by Heteroatom-Doped Graphene: First-Principles Study (J. Phys. Chem. C 2020, 124, 3644−3649; 10.1021/acs.jpcc.9b10314) Li, Sn, PhH, BZ, S, pyr, IT, Py

(5) Structure–Activity Relationships of Radioiodinated 6,5,6-Tricyclic Compounds for the Development of Tau Imaging Probes (ACS Med. Chem. Lett. 2020, 11, 120−126; 10.1021/acsmedchemlett.9b00456) Ab, Am, BD, lb, pmd, Sn, pyr, NFT, cbz, Py

February 19, 2020
Chem. Lett. 2020, 49 (3), 252−253.
February 18, 2020
February 18, 2020
Org. Lett. 2020, 22 (3), 1135−1138.
February 17, 2020
February 17, 2020
Org. Lett. 2020, 22 (3), 1124−1129.
February 14, 2020
February 14, 2020
Angew. Chem. Int. Ed. 2020, 59 (8), 3147−3150.
February 13, 2020
May 24, 2019
Chem. Commun. 2019, 55 (41), 5740−5742.
June 7, 2016
March 4, 2019
J. Am. Chem. Soc. 2019, 141 (8), 3664−3669.
November 19, 2014
January 27, 2016
May 28, 2019
Chem. Commun. 2019, 55 (41), 5859−5862.
February 11, 2018
December 12, 2019
J. Am. Chem. Soc. 2019, 141 (49), 19257−19262.
October 30, 2019
May 28, 2016
June 15, 2016
January 1, 2020
December 11, 2019
March 11, 2016
June 7, 2016
October 5, 2017
September 30, 2019
November 22, 2016
December 29, 2015
December 26, 2019
December 20, 2019
(c) Nanoniele, 2003-