Results 191 to 200 of about 1,621,772 (233)

Unlocking Catalyst Activation as a Critical Bottleneck in Cross-Coupling Reactions: Room-Temperature Couplings of Weak Nucleophiles Enabled by [Pd(1-MeNAP)TFA]₂ Precatalysts. [PDF]

Angew Chem Int Ed Engl
Manna S, Janning HF, Tzouras NV, Sagayaraj JAS, Mannighayil FF, Doppiu A, Gooßen LJ.   +6 more
europepmc   +1 more source

Synthesis of Naphthoquinones by Pd‐Catalyzed Heck–Matsuda Arylation of Lapachol

European Journal of Organic Chemistry, EarlyView.
Direct Heck–Matsuda arylation of lapachol enables the efficient synthesis of diverse naphthoquinones under homogeneous and heterogeneous palladium catalysis. The methodology features broad substrate scope, gram‐scale applicability, and provides a practical platform for quinone diversification.
Breno U. de Abreu, Renata G. Almeida, Ana L. C. Silveira, Leonardo A. Matos, Willian X. C. Oliveira, Maria H. Araujo, Victor F. S. Ramos, Rubem F. S. Menna‐Barreto, Chandrakant B. Nichinde, Felipe Fantuzzi, Edmond Gravel, Eric Doris, Eufrânio N. da Silva Júnior, Guilherme A. M. Jardim   +13 more
wiley   +1 more source

Recent advances in sulfur-containing flavors of garlic (<i>Allium sativum</i> L.): formation mechanisms, controlling factors and innovative processing technologies. [PDF]

Food Chem X
Wu P, Dong T, Sun J, Chen H.
europepmc   +1 more source

Selective N‐Functionalization of Pyrazoles

European Journal of Organic Chemistry, EarlyView.
This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek, Matthias Schrader, Christopher J. Teskey   +2 more
wiley   +1 more source

Influence of Fermentation and Curing on Residual Nitrite, Physico-Chemical, Volatile, Sensory, and Microbiological Properties of Sucuk Döner Kebab During Refrigerated and Frozen Storage. [PDF]

Food Sci Nutr
Sinan A, Kılıç B, Şimşek A, Yıldız M.   +3 more
europepmc   +1 more source

Base‐Free Nickel‐Catalyzed Three‐Component Coupling of Aldehydes, Butadiene, and Malonate Derivatives: Toward Sustainable Synthesis of Highly Functionalized Molecules

European Journal of Organic Chemistry, EarlyView.
A nickel‐catalyzed three‐component reaction between arylaldehydes, butadiene, and malonates is developed yielding high functionalized homoallylic alcohols in a single step. No additional base is required and the reaction shows broad substrates compatibility with yields up to 96% and an exclusive selectivity toward the linear E‐isomer.
Anthony Saint Pol, Radhouan Maazaoui, Céline Delabre, Laëtitia Chausset‐Boissarie, Maël Penhoat, Isabelle Suisse, Aurélien Béthegnies, Mathieu Sauthier   +7 more
wiley   +1 more source

Three reversibly interconvertible redox states of boradigermaallyl: syntheses of radical allyl anion and allyl dianion. [PDF]

Chem Sci
Miehe SF, Eichele K, Schubert H, Bettinger HF, Sindlinger CP, Wesemann L.   +5 more
europepmc   +1 more source

Synthesis of Cysteine–Fluorophore Conjugates by Visible‐Light‐Promoted Thiol–Ene Coupling Using Organic Photocatalysts

European Journal of Organic Chemistry, EarlyView.
Cysteine–fluorophore conjugates were efficiently prepared through a visible‐light‐driven thiol–ene approach employing solely organic photocatalysts. The reaction proceeds under mild, metal‐free conditions. The fluorophore scope includes mono‐ and dialkene‐functionalized naphthalene, naphthalimide, and aromatic diimide derivatives.
Julieth Bellaizac‐Riascos, Pilar Ortiz‐Serna, Raúl Pérez‐Ruiz, Susana Encinas, M. Consuelo Jiménez   +4 more
wiley   +1 more source

Synthesis of S‐Linked Glycoconjugates of Monosaccharides and Levoglucosenone Derivatives Through Photoinduced Thiol–Ene Reaction Mediated by 4CzIPN and Its Water Soluble Analog

European Journal of Organic Chemistry, EarlyView.
Visible‐light thiol–ene reaction mediated by 4CzIPN enables access to hydrolytically stable S‐linked glycoconjugates from levoglucosenone‐derived thiols (Y = 91% to quant. d.r. = up to >95:5) and conventional thio‐sugars (Y = 80% to quant. d.r. = up to >95:5).
Lorenzo Poletti, Francesco Riina, Daniele Ragno, Carmela De Risi, Alessandro Massi, Graziano Di Carmine   +5 more
wiley   +1 more source

Highly regio- and <i>E</i>-stereoselective C[double bond, length as m-dash]C bond transposition catalyzed by tris(benzhydryl) sodium calciate. Proof of synergy: one metal is good, but two are better. [PDF]

Chem Sci
Koshelev IV, Selikhov AN, Cherkasov AV, Aysin RR, Trifonov AA.   +4 more
europepmc   +1 more source