Results 101 to 110 of about 89,156 (285)

Alkylation of Hydroxymethylenecyclohexanones. [PDF]

, 1928
HEMENDRA KUMAR SEN, KANAILAL MONDAL
openalex   +1 more source

The Alkylation of Acetoacetic Ester by Toluenesulphonic Esters. [PDF]

, 1935
C. NARAYANAN NAIR, D. H. PEACOCK
openalex   +1 more source

Direct Integration of Functionalized Bridges by One‐Step Superacid‐Catalyzed Reaction to Fabricate Porous Polymers for CO2 Capture and Separation

Angewandte Chemie, EarlyView.
The one‐step polymerization of unfunctionalized polyaromatic monomers and glyoxylic acid under superacid‐catalysis conditions promotes the simultaneous generation of highly porous 3D architectures and the controlled decoration of pore surfaces with aliphatic carboxylic acids. These ultra‐microporous frameworks and their ester and polyionic derivatives,
Jacopo Perego, Sergio Piva, Charl Xavier Bezuidenhout, Angiolina Comotti, Piero Sozzani, Silvia Bracco   +5 more
wiley   +2 more sources

Mechanochemistry‐Driven Borrowing Hydrogen Processes for Ru‐Catalyzed N‐Alkylation: A Pathway to Enhanced Sustainability and Efficiency

Angewandte Chemie, EarlyView.
This work pioneers a solvent‐free mechanochemical borrowing hydrogen (BH) strategy for the rapid and efficient N‐alkylation of amines and heterocycles. By removing harsh conditions and toxic reagents while employing a simple Ru catalyst, this approach redefines BH as a cleaner, more versatile, and sustainable platform for synthetic chemistry.
Sourav Behera, Dipak J. Fartade, Rita Mocci, Michela Matta, Lidia De Luca, Andrea Porcheddu   +5 more
wiley   +2 more sources

WE USE HARSHAW CATALYTIC GRADE CHEMICALS for alkylation · isomerization · polymerization [PDF]

, 1946

openalex   +1 more source

Total Synthesis of Isodaphlongamine H by Iridium‐Catalyzed Reductive [3 + 2] Cycloaddition of N‐Hydroxylactam

Angewandte Chemie, EarlyView.
The total synthesis of isodaphlongamine H was accomplished by a lactam strategy. This strategy started with alkylation and N‐oxidation of a readily available chiral lactam. For the key functionalization of the amide carbonyl, an iridium‐catalyzed reductive [3 + 2] cycloaddition of the N‐hydroxylactam afforded the tricyclic isoxazolidine, which was ...
Sora Iwamoto, Reki Nakano, Keiji Sasaki, Shoichiro Kobayashi, Yuki Taira, Koya Takei, Reiji Kawakita, Ayako Tokuyama, Haruto Nakamura, Manato Tomoike, Ryota Kawahara, Akari Murase, Siro Simizu, Noritaka Chida, Toshitaka Okamura, Takaaki Sato   +15 more
wiley   +2 more sources

Enantioconvergent Cobalt‐Catalyzed Hydroalkylation for the Construction of Fluoro, Chloro, and Trifluoromethyl Stereogenic Centers

Angewandte Chemie, EarlyView.
Cobalt‐hydride catalyzed enantioconvergent hydroalkylation with allenes and alkenes is achieved with high chemo‐, regio‐, and enantioselectivity. This method allows the streamlined synthesis of enantiomerically enriched C(sp3)–fluorine, –chlorine, and –trifluoromethyl stereocenters.
Uttam Dhawa, Xile Hu
wiley   +2 more sources

ALKYLATION OF KETONES [PDF]

, 1949
R. R. AGARWAL, S. DESHAPANDE
openalex   +1 more source

Decarboxylierende Alkyl‐Alkyl‐Kreuzkupplungen

Angewandte Chemie, 2016
Elizabeth R. Jarvo, Mikhail O. Konev
openaire   +3 more sources

Direct Activation of Sulfides by C–H Oxidation with Photoexcited Nitroarenes: Formal Manipulations of the C─S Bond

Angewandte Chemie, EarlyView.
Photochemical anaerobic oxidation of sulfides, using nitroarenes as bifunctional reagents, enables the formal manipulation of the C─S bond. The method allows direct and selective access to versatile carbonyl compounds from largely inert sulfides by C–H oxidation, thus avoiding multistep activation by sulfur oxidation.
Valentina D. Cuomo, Ciro Romano, David J. Procter   +2 more
wiley   +2 more sources