![Tandem [2 + 2] Cycloaddition/Rearrangement toward Carbazoles by Visible-Light Photocatalysis](/na101/home/literatum/publisher/achs/journals/content/orlef7/0/orlef7.ahead-of-print/acs.orglett.1c00290/20210226/images/medium/ol1c00290_0008.gif)
Featured Content
Recent highlights from the journal.
Editorials
Challenges and More Challenges
Erick Carreira and Pauline Chiu
"I'll be right here … " Saying Farewell, But Not Goodbye
Erick Carreira
View Diversity & Inclusion, Safety, and other Editorials from Organic Letters
Virtual Issues
Selected articles from authors in Japan on synthetic methodology includes total synthesis of natural products, chemical biology research, and supramolecular chemistry along with applications of (opto)electronic materials.
![Palladium-Catalyzed Dual Coupling Reaction of 2-Iodobiphenyls with <i>o</i>-Bromoanilines through C–H Activation: An Approach for the Synthesis of Tribenzo[<i>b</i>,<i>d</i>,<i>f</i>]azepines](/na101/home/literatum/publisher/achs/journals/content/orlef7/2021/orlef7.2021.23.issue-4/acs.orglett.0c04192/20210215/images/medium/ol0c04192_0007.gif)
![<i>C</i><sub>2</sub>- and <i>C</i><sub>1</sub>-Symmetric Configurationally Stable Pyrene-Fused [5]Helicenes Connected via Hexagonal and Heptagonal Rings](/na101/home/literatum/publisher/achs/journals/content/orlef7/2021/orlef7.2021.23.issue-4/acs.orglett.1c00005/20210215/images/medium/ol1c00005_0005.gif)
Browse by Subject
Select a subject area to discover related terms and applicable articles.
All Subject Areas
- Organic chemistry
- Organic compounds
- Hydrocarbons (8622)
- Aromatic compounds (4908)
- Alcohols (4132)
- Heterocyclic compounds (2790)
- Aldehydes (2509)
- Ketones (2172)
- Ethers (2035)
- Alkyls (1895)
- Amines (1839)
- Amides (1563)
- Indoles (1083)
- Nitrogen compounds (526)
- Lactones (526)
- Organic acids (525)
- Azides (500)
- Enones (465)
- Enolates (410)
- Carbene compounds (397)
- Phenyls (323)
- Styrenes (265)
- Thiols (254)
- Free radicals (235)
- Hydroxyls (227)
- Quinolines (206)
- Urea (172)
- Organophosphorus compounds (159)
- Macrocyclic compounds (137)
- Quinones (122)
- Azomethine (116)
- Guanidine (101)
- Rotaxanes (96)
- Pyrimidine (71)
- Steroids (68)
- Sesquiterpenes (51)
- Imidazolium (40)
- Sesquiterpenoids (40)
- Triterpenes (32)
- Azobenzene (28)
- Xanthones (27)
- Trimethylsilyls (26)
- Bipyridine (24)
- Antioxidants (22)
- Flavonoids (20)
- Thiolates (19)
- Phthalocyanine (16)
- Catenanes (16)
- Amphiphiles (14)
- Polyols (13)
- Sodium dodecyl sulfate (13)
- Butadiene (6)
- Tetrathiafulvalene (5)
- Covalent organic frameworks (5)
- Cage compounds (3)
- Tocopherols (3)
- Melamine (2)
- Methylglyoxal (2)
- Natural organic matter (2)
- Butylene (1)
- Bisphenols (1)
- Organic reactions
- Addition reactions (3027)
- Substitution reactions (1767)
- Substituents (1501)
- Cross coupling reaction (1126)
- Annulations (646)
- Aldol reactions (565)
- Metathesis (554)
- Coupling reactions (537)
- Arylation (482)
- Allylation (282)
- Hydrolysis (212)
- Carbonylation (106)
- Heck reaction (102)
- Trifluoromethylation (96)
- Insertion reactions (84)
- Macrocyclization (70)
- Bond activation (67)
- Elimination reactions (67)
- Claisen rearrangement (35)
- Hydroformylation (35)
- Transesterification (22)
- Dehalogenation (10)
- Solvolysis (9)
- Deamidation (2)
- Grignard reaction (1)
- Stereochemistry
- Functional groups
- Organic synthesis
- Functionalization (1073)
- Conformation
- Combinatorial chemistry
- Physical organic chemistry
- Aromaticity (39)
- Immobilization (14)
- Isomerism
- Covalent bonding (2)
- Organic compounds
- Cross-disciplinary concepts
- Chemical reactions
- Cyclization (5087)
- Organometallic reactions (4317)
- Reaction products (3623)
- Reagents (1830)
- Substitution reactions (1767)
- Redox reactions (1295)
- Oxidation (1155)
- Rearrangement (1012)
- Adducts (729)
- Transfer reactions (505)
- Oxidation reactions (478)
- Isomerization (363)
- Ring opening reactions (328)
- Halogenation (300)
- Cyclopropanation (174)
- Olefination (143)
- Oxidative coupling (128)
- Fragmentation (118)
- Desymmetrization (98)
- Deprotonation (73)
- Oxidative cyclization (73)
- Silylation (68)
- Chemoselectivity (50)
- Hydrogen abstraction (41)
- Dehydration (37)
- Hydration (32)
- Reductive elimination (23)
- Nucleophilic substitution (21)
- Reaction rates (18)
- Hydride transfer (15)
- Tautomerization (12)
- Evolution reactions (9)
- Peroxidation (7)
- Ligand exchange (6)
- Hydrothermal reactions (5)
- Mechanisms of reactions (4)
- Oxidative dehydrogenation (2)
- Regiospecificity (1)
- Stimuli-responsive (1)
- Physical and chemical processes
- Physical and chemical properties
- Reactivity (537)
- Conformation (481)
- Toxicity (221)
- Chirality (174)
- Stability (128)
- Molecular properties (124)
- Thermodynamic properties (73)
- Solubility (71)
- Hydrophobicity (63)
- Energy levels (37)
- Mobility (32)
- Polarity (31)
- Optical properties (24)
- Magnetic properties (23)
- Polarization (18)
- Electrical properties (14)
- Thermal properties (9)
- Hydrophilicity (7)
- Electronic properties (5)
- Polarizability (4)
- Oxidation state (4)
- Vacuum (4)
- Porosity (4)
- Isomerism (3)
- Viscosity (3)
- Luminescence properties (1)
- Defects (1)
- Chemical reactions
- Inorganic chemistry
- Elements
- Palladium (990)
- Carbon (690)
- Nitrogen (378)
- Oxygen (364)
- Copper (272)
- Hydrogen (230)
- Gold (200)
- Potassium (192)
- Lithium (188)
- Sulfur (188)
- Zinc (171)
- Sodium (167)
- Iodine (160)
- Boron (140)
- Rhodium (124)
- Fluorine (106)
- Silver (104)
- Iron (89)
- Cobalt (84)
- Phosphorus (81)
- Ruthenium (80)
- Silicon (78)
- Mercury (75)
- Selenium (59)
- Indium (59)
- Platinum (56)
- Magnesium (54)
- Nickel (53)
- Titanium (45)
- Bromine (39)
- Samarium (31)
- Chlorine (27)
- Chromium (26)
- Calcium (21)
- Aluminum (20)
- Cesium (12)
- Scandium (8)
- Rhenium (8)
- Gallium (8)
- Vanadium (7)
- Tellurium (6)
- Bismuth (6)
- Osmium (6)
- Tungsten (4)
- Cadmium (4)
- Germanium (3)
- Ytterbium (3)
- Molybdenum (3)
- Europium (2)
- Arsenic (2)
- Terbium (1)
- Tantalum (1)
- Helium (1)
- Barium (1)
- Gadolinium (1)
- Ions
- Inorganic compounds
- Coordination chemistry
- Acid and base chemistry
- Mixtures
- Main group chemistry
- Metals
- Inorganic reactions
- Minerals
- Solid state chemistry
- Transition metal complexes
- Lanthanides and actinides
- Bioinorganic chemistry
- Elements
- Physical chemistry
- Chemical structure
- Molecules
- Solution chemistry
- Luminescence
- Spectroscopy
- Nuclear magnetic resonance spectroscopy (513)
- Circular dichroism spectroscopy (274)
- Electron paramagnetic resonance spectroscopy (90)
- Absorption spectroscopy (60)
- Dynamic light scattering (4)
- Raman spectroscopy (4)
- Fluorescence spectroscopy (3)
- Infrared spectroscopy (2)
- Scanning tunneling spectroscopy (2)
- X-ray spectroscopy (2)
- Correlation spectroscopy (1)
- Chemical bonding
- Radiation
- Photochemistry
- Photocatalysis (144)
- Photodissociation (119)
- Photochemical reactions (90)
- Photosensitization (26)
- Photocyclization (26)
- Photooxidation (19)
- Photoisomerization (18)
- Photophysical properties (14)
- Photodimerization (12)
- Photochemical synthesis (10)
- Photoluminescence (6)
- Photoreactivity (5)
- Photostability (5)
- Photodegradation (3)
- Photobleaching (3)
- Photoswitching (3)
- Photochemical properties (1)
- Photochemical reduction (1)
- Kinetics
- Thermodynamics
- Quantum mechanics
- Crystallography
- Semiconductors
- Electrochemistry
- Optics
- Cluster chemistry
- Equilibrium
- Surface science
- Biophysical chemistry
- Fluid mechanics
- Quasiparticles and excitations
- Carrier dynamics
- Particles
- Ultrasound (1)
- Statistical mechanics
- Biology and biological chemistry
- Biochemistry
- Biology
- Cell and molecular biology
- Receptors (347)
- Cells (253)
- Encapsulation (54)
- Immunology (45)
- Apoptosis (42)
- Cell signaling (35)
- Differentiation (26)
- Cholesterol (18)
- Small molecules (17)
- G-Quadruplex (9)
- Cell physiology (6)
- Gene delivery (4)
- Mitochondria (3)
- Cell uptake (3)
- Autophagy (3)
- Tumors (2)
- Biomarkers (2)
- Plasma membrane (1)
- Free radical scavenging (1)
- Cell culture (1)
- DNA replication (1)
- Endocytosis (1)
- Cell transport (1)
- Neuroscience
- Microbiology
- Plant biology
- Bioengineering and biotechnology
- Bioanalytical chemistry (29)
- Bioinformatics and computational biology (10)
- Catalysis
- Materials science
- Materials
- Solvents (1861)
- Vinyl (700)
- Dyes and pigments (347)
- Crystals (117)
- Thin films (67)
- Granular materials (39)
- Liquid crystals (28)
- Fibers (19)
- Plastics (13)
- Particulate matter (12)
- Substrates (11)
- Anode materials (7)
- Explosives (6)
- Porous materials (5)
- Composites (4)
- Magnetic materials (3)
- Hybrid materials (3)
- Filaments (2)
- Alloys (1)
- Insulators (1)
- Foams (1)
- Coating materials (1)
- Layered materials (1)
- Materials processing
- Material properties
- Nanomaterials
- Biomaterials
- Impurities (15)
- Wires (9)
- Thermal analysis
- Tailoring (5)
- Fluxes (4)
- Stress (3)
- Organic electronics (2)
- Materials
- Organometallic chemistry
- Medicinal chemistry
- Pharmacology
- Pharmaceuticals (1740)
- Selectivity (1341)
- Bioactivity (38)
- Drug discovery (24)
- Small molecules (17)
- Antibacterial activity (17)
- Antifungal activity (10)
- Heparin (5)
- Antimicrobial activity (4)
- Drug delivery (4)
- Drug release (3)
- Pharmacokinetics (3)
- Deactivation (2)
- Pharmaceutics (2)
- Pegylation (2)
- Mechanisms of action (2)
- Inhibitors
- Metabolism (306)
- Diseases and disorders
- Nutrition (44)
- Toxicology
- Agonists (20)
- Therapeutics
- Imaging agents (5)
- Nuclear medicine
- Pharmacophores (3)
- Antibiotic resistance (3)
- Antitumor activity (3)
- Detoxification (2)
- Anticancer activity (1)
- Bioactive compounds (1)
- Pharmacology
- Polymer science
- Polymers
- Biopolymers (846)
- Oligomers (571)
- Organic polymers (492)
- Dendrons (148)
- Oligosaccharides (108)
- Conjugated polymers (28)
- Copolymers (16)
- Plastics (13)
- Thermoresponsive polymers (7)
- Polymer solutions (5)
- Polymer films (4)
- Silicones (3)
- Coordination polymers (3)
- Star polymers (3)
- Polyethylene (3)
- Polyethylenimine (2)
- Fluoropolymers (2)
- Polymer particles (1)
- Polyacrylamide (1)
- Elastomers (1)
- Polyimides (1)
- Polyelectrolytes (1)
- Carbon fiber (1)
- Polymerization
- Metathesis
- Insertion reactions (84)
- Polymer scaffolds (15)
- Gelation (11)
- Hydrothermal reactions (5)
- Cellulosic materials
- Polymer morphology
- Microspheres
- Polymers
- Analytical chemistry
- Spectroscopy (942)
- Chromatography
- Analytical apparatus
- Imaging
- Separation science
- Electrochemistry (174)
- Quantitative analysis
- Mass spectrometry
- Labeling
- Sample preparation
- Microscopy
- Bioanalytical chemistry
- Biochemical analysis
- Voltammetry
- Structural analysis
- Calorimetry
- Colorimetry (15)
- Chemistry laboratories
- Electrophoresis
- Kinetic analysis
- Mechanistic analysis (3)
- Chemical biology
- Chemical engineering and industrial chemistry
- Theoretical and computational chemistry
- Quantum mechanics (429)
- Mathematical methods
- Chemical calculations
- Density functional theory
- Group theory
- Computer simulations
- Quasiparticles and excitations (16)
- Molecular modeling
- Computational chemistry
- Bioinformatics and computational biology
- Theoretical calculations (5)
- Theoretical models (3)
- Statistical mechanics (1)
- Energy
- Nanoscience
- Earth, space, and environmental chemistry
- Nuclear chemistry
- Supramolecular chemistry
- Agriculture and food chemistry
- Chemistry education
Most Read
Rankings are updated daily for previous 30 days (below) and previous 12 months. See all articles.
Advance your career with professional development resources, educational tools, free access to 50 ACS journal articles, and more!
Join ACS
