Results 191 to 200 of about 159,996 (294)

Dual Lewis Acid Promoted/Visible Light Driven Preparation of Aryl Diazenyl Oxazoles from Isocyanoacetamides and Arylazo Sulfones

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract While arylazo sulfones have been widely applied as arylating agents, their exploitation for diazenylation reactions has been previously limited to electron‐rich alkenes such as styrenes and silyl enol ethers. Herein we optimized a synthetic one‐pot protocol to access oxazolyl azo compounds via a selective domino ring‐closing/aryldiazenylation ...
Enzo Delalande, Lorenzo di Terlizzi, Camilla Russo, Carmine Volpe, Stefano Protti, Mariateresa Giustiniano   +5 more
wiley   +1 more source

Organocatalytic Asymmetric Synthesis of Azabicyclo[2.1.1]hexanes. [PDF]

ACS Catal
Alama L, Frank N, Brücher L, Nienhaus J, List B.   +4 more
europepmc   +1 more source

Direct Access to α,β‐Unsaturated γ‐Lactams via Palladium‐Catalysed Carbonylation of Propargylic Ureas.

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract Additive carbonylations typically necessitate strong nucleophiles, such as alcohols or amines. In this study, we carbonylated a poorly nucleophilic urea, under oxidant‐free conditions. Our straightforward carbonylative strategy enables access to versatile α,β‐unsaturated γ‐lactams featuring an aminocarbonyl fragment, utilizing readily ...
Debora Schiroli, Aleksandr Voronov, Francesco Pancrazzi, Nunzio Iraci, Salvatore Vincenzo Giofrè, Beatrice Macchi, Valeria Stefanizzi, Raffaella Mancuso, Bartolo Gabriele, Paolo Pio Mazzeo, Luca Capaldo, Nicola Della Ca'   +11 more
wiley   +1 more source

Antineoplastic agents. XIX. N-Bis(2-haloethyl)glycine amides [PDF]

, 1967
George R. Pettit, Maurice R. Chamberland, Brian Green   +2 more
openalex   +1 more source

Divergent alkynylative difunctionalization of amide bonds through C-O deoxygenation versus C-N deamination. [PDF]

Nat Commun
Liu F, Yan X, Cai F, Hou W, Dong J, Yin SF, Huang G, Chen T, Szostak M, Zhou Y.   +9 more
europepmc   +1 more source

Improving the Photochemical Skeletal Enlargement of Pyridines to 1,2‐Diazepines with Isocyanates

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract In this work, we extend the one‐pot protocol to synthesize 1,2‐diazepines from commercially available and cheap starting materials. Capitalizing on isocyanate derivatives as activating agents, the photochemical skeletal enlargement occurs, while preserving key functional groups embedded in more than 30 substrates.
Clément Ghiazza, Aurélie Damond, Jérôme Marrot, Xavier Moreau   +3 more
wiley   +1 more source

Amides, Properties and Uses as Solvents,

, 1967
M. OKAWARA
openalex   +2 more sources

General Synthesis of 2-Substituted Benzoxazoles Based on Tf₂O-Promoted Electrophilic Activation of Tertiary Amides. [PDF]

Molecules
Li H, Wang X, Zhao F, Wang L, Fu S.
europepmc   +1 more source

Efficient Synthesis of Amino Lactones via Copper‐catalysed Alkene Aminooxygenation

Advanced Synthesis &Catalysis, EarlyView.
Abstract The synthesis of 5–7 membered oxygenated heterocycles by intramolecular aminooxygenation of unsaturated alkenes using commercially available N‐fluorobenzenesulfonimide as amination reagent and TpiPr2Cu(NCCH3) as precatalyst is reported. With unsaturated aliphatic carboxylic acids, the corresponding lactones are obtained from moderate to almost
Martina Casciotti, José M. Muñoz‐Molina, Tomás R. Belderrain, Pedro J. Pérez   +3 more
wiley   +1 more source

Deoxygenative photochemical alkylation of secondary amides enables a streamlined synthesis of substituted amines. [PDF]

Nat Commun
Pulcinella A, Bonciolini S, Stuhr R, Diprima D, Tran MT, Johansson M, von Wangelin AJ, Noël T.   +7 more
europepmc   +1 more source