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Ruthenium-Catalyzed [2 + 2] Cycloadditions of Bicyclic Alkenes with Alkynyl P...
Ruthenium-catalyzed [2 + 2] cycloadditions of bicyclic alkenes with alkynyl phosphonates were investigated. The phosphonate moieties were found to be compatible with the... -
Design of Novel Derivatives of Phosphonoformate (Foscarnet) as Prodrugs and A...
Design of Novel Derivatives of Phosphonoformate (Foscarnet) as Prodrugs and Antiviral Agents -
Oxidative Aromatization of 9,10-Dihydroanthracenes Using Molecular Oxygen Pro...
Substituted 9,10-dihydroanthracenes were oxidatively aromatized to the corresponding anthracenes effectively by using molecular oxygen as an oxidant and activated carbon (Darco... -
Cycloadditions of Aromatic Azomethine Imines with 1,1-Cyclopropane Diesters
The cycloaddition of aromatic azomethine imines to 1,1-cyclopropane diesters was achieved using Ni(ClO4)2 as catalyst. The methodology gives access to unique tricyclic... -
Heteroaryl Substituted Polythiophenes: Chemical and Electrochemical Synthese...
Heteroaryl Substituted Polythiophenes: Chemical and Electrochemical Syntheses and Characterization of Poly[3-(9-tris(ethylene glycol) monomethyl ether)carbazoylthiophene] -
Synthesis of New 14-Membered Macrolide Antibiotics via a Novel Ring Contracti...
A novel ring opening ring closing metathesis (ROM-RCM) was demonstrated for cyclic conjugated dienes, effecting the excision of a C2H2 unit and a net ring contraction. Applying... -
Variable Markovnikov Orientation and "cis Effect" in Ene Reactions of Nitroso...
Nitrosocarbonyl intermediates, generated at room temperature by the mild oxidation of nitrile oxides, undergo clean ene reactions with trisubstituted olefins. Allylic hydrogens... -
Asymmetric Catalytic Friedel−Crafts Reaction of Silyl Enol Ethers with Fluora...
The catalytic asymmetric Friedel−Crafts reaction of silyl enol ethers with fluoral proceeds under Mukaiyama-aldol conditions to give silyl enol ether products. The sequential... -
Direct Enantioselective Organocatalytic Hydroxymethylation of Aldehydes Catal...
The direct enantioselective hydroxymethylation of aldehydes utilizing α,α-diphenylprolinol trimethylsilyl ether as an organocatalyst is described. The intermediate α-substituted... -
Ozonolyses of 3-Benzoyloxy- and 3-Trimethylsiloxy-Substituted 2-Phenylindenes...
Ozonolyses of 3-Benzoyloxy- and 3-Trimethylsiloxy-Substituted 2-Phenylindenes in Methanol: Substituent-Dependent Modes of Capture of the Carbonyl Oxide Intermediates by the... -
π-Facial Stereoselectivity in Diels−Alder Cycloadditions to 1-Oxaspiro[4.5]de...
The title compound 1, prepared from 1,4-cyclohexanedione monoethylene ketal, was treated with several reactive dienes, including diphenylisobenzofuran and... -
Gases as Guests in Benzocyclotrimer Cage Hosts
An imine-linked (+)-syn-benzotricamphor derivative gives access to chiral unimolecular cages exhibiting internal cavities of new shapes and volumes. One of these hosts... -
Correlation of Free Radical Copolymerization Behavior and Copolymer Propertie...
In order to determine if the alternating tendency of styrene with fluorinated styrenes in free radical copolymerizations correlates with the strength and/or extent of π−π... -
Tri- and Tetracyclic Azepine Derivatives by Thermally Induced Cyclization of ...
The 3,3-dimethylindoline-derived allenes 5 are conveniently prepared by organocuprate addition to 2-(phenylethynyl)-3,3-dimethyl-1-methylindolium triflate 4. Their thermal... -
Complementary Selectivity in the Alkylation of Chiral Bicyclic Lactam Enolates
Complementary Selectivity in the Alkylation of Chiral Bicyclic Lactam Enolates -
An Efficient Copper−Aluminum Hydrotalcite Catalyst for Asymmetric Hydrosilyla...
A catalyst system consisting of a copper−aluminum hydrotalcite−chiral diphosphine ligand effects asymmetric hydrosilylation of several ketones, using polymethylhydrosiloxane... -
7-Substituted 2-Azabicyclo[2.2.1]heptanes as Key Intermediates for the Synthe...
Neighboring group participation by the 2-nitrogen in anti-7-bromo-2-benzyl-2-azabicyclo[2.2.1]heptane allows ready nucleophilic substitution at the 7-position by C, N, O, and... -
Chelation and Nonchelation Control in the [3 + 4] and [3 + 5] Annulation Reac...
Chelation and Nonchelation Control in the [3 + 4] and [3 + 5] Annulation Reactions of Benzyloxy-Substituted Dicarbonyl Electrophiles with Bis(trimethylsilyl) Enol Ethers -
Unprecedented Tunable Tetraazamacrocycles
Novel nitrogen-bridged aza[14]cyclophanes with fine-tuned cavities have been synthesized by nucleophilic aromatic substitution of 1,5-difluoro-2,4-dinitrobenzene with...
