Results 141 to 150 of about 45,362 (276)

Regioselectivity of Arylation of 2,3’-Biquinolyl Dianion [PDF]

, 1999
А. В. Аксенов, И. В. Аксенова, И. В. Боровлев, Yu. I. Smushkevich   +3 more
openalex   +1 more source

A General Platform for the Light‐Enabled Generation of α‐Fluoro Radicals Leveraging Simple Additives

Helvetica Chimica Acta, EarlyView.
A catalyst‐free, visible‐light protocol enables mild generation of α‐fluoro radicals from α‐halo fluorinated precursors using sodium iodide and 2,6‐lutidine. In situ halide exchange and C–I homolysis afford broad access to fluorinated esters, sulphones, and nitriles via coupling with diverse partners.
Jonas Klagge, Maria Mazhuga, John J. Molloy   +2 more
wiley   +1 more source

NMR‐Based Structural Analysis of Highly Substituted Pyridines From Kondrat'eva Aza‐Diels–Alder Cycloadditions

Magnetic Resonance in Chemistry, EarlyView.
We report the results from a kinetic and mechanistic investigation of an inverse‐electron‐demand Diels–Alder (IEDDA) cycloaddition involving an oxazole‐type diene synthesized via an Ugi–Zhu multicomponent reaction (UZ‐3CR). ABSTRACT Pyridines are a crucial class of heterocycles with widespread applications in natural products, pharmaceuticals, and ...
Galdina V. Suárez‐Moreno, Francisco Méndez, Atilano Gutierrez‐Carrillo, Mónica A. Rincón‐Guevara, Yoarhy A. Amador‐Sánchez, Alejandro Islas‐Jácome, Eduardo González‐Zamora   +6 more
wiley   +1 more source

Modular and diverse synthesis of oxaheterocycles <i>via</i> Pd-catalyzed migratory 1,<i>n</i>-cycloannulation of alkenes. [PDF]

Chem Sci
Wang JP, Wu Y, Wang P.
europepmc   +1 more source

Intermolecular and Regioselective Access to Polysubstituted Benzo‐ and Dihydrobenzo[c]azepine Derivatives: Modulating the Reactivity of Group 6 Non‐Heteroatom‐Stabilized Alkynyl Carbene Complexes

, 2014
Jairo González, Aránzazu Gómez, Ignacio Funes‐Ardoiz, Javier Santamarı́a, Diego Sampedro   +4 more
openalex   +2 more sources

Microwave‐Assisted Organic Syntheses in Deep Eutectic Solvents: A Win‐Win Association for Sustainable Chemistry

ChemistryOpen, EarlyView.
In organic synthesis, deep eutectic solvents (DES) have demonstrated their ability to be used as reaction media for the development of reactions in line with green chemistry principles. This review presents an overview of microwave‐assisted organic synthesis in DES, highlighting the diversity of uses for these solvents, their role in mechanisms, the ...
Pierre‐Olivier Delaye, Chefikou Salami, Emilie Thiery   +2 more
wiley   +1 more source

Pd-catalyzed regiodivergent arylation of cyclic allylboronates. [PDF]

Chem Sci
Zhang C, Leforestier B, Besnard C, Mazet C.   +3 more
europepmc   +1 more source

Electrochemical regioselective trifluoromethylation of imidazo[2,1-b]thiazoles with CF₃SO₂Na

Liu, Meilin, Xiao, Meng, Liao, Peng, Liu, Wenjie   +3 more
openalex   +1 more source

REGIOSELECTIVE SYNTHESIS OF A NEW CLASS OF N-ARYLSULFONYLAMINATED BIHETEROCYCLES

, 2002
Galal H. Elgemeie, Shahinaz Hassan Sayed
openalex   +1 more source

Total syntheses of oxygenated brazanquinones via regioselective homologous anionic Fries rearrangement of benzylic O-carbamates [PDF]

, 2006
Glaucia Barbosa Candido Alves Slana, Mariângela S. Azevedo, Rosângela S. C. Lopes, Cláudio C. Lopes, Jarí N. Cardoso   +4 more
openalex   +1 more source