Results 61 to 70 of about 51,592 (230)

1 : 3 Dipolar Cycloaddition of Benzonitrile Oxide on to Cinnamyl Arylamines

, 1971
1:3 Dipolar Cycloaddition of Benzonitrile Oxide on to Cinnamyl Arylamines.
Mohan, Suresh, J. S. Sandhu, Kumar, Baldev   +2 more
openaire   +1 more source

Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]

, 2011
A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Engels, Joachim W., Krim, Jamal, Taourirte, Mohamed   +2 more
core   +2 more sources

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

Chemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati, Claudio Trapella, Vinicio Zanirato, Virginia Cristofori, Anna Fantinati   +4 more
wiley   +1 more source

Copper Nanoparticles in Click Chemistry [PDF]

, 2015
Conspectus: The challenges of the 21st century demand scientific and technological achievements that must be developed under sustainable and environmentally benign practices.
Alonso, Francisco, Moglie, Yanina, Radivoy, Gabriel   +2 more
core   +2 more sources

Copper‐ and Silver‐Catalyzed Reactions of Active Methylene Isocyanides: Facile Access to Highly Substituted Five‐ and Six‐Membered Heterocycles

Chemistry – A European Journal, EarlyView.
This review summarizes recent advances in copper‐ and silver‐catalyzed reactions of active methylene isocyanides for the synthesis of highly substituted five‐ and six‐membered heterocycles. Emphasis is placed on [3+n] cycloadditions, annulations, and asymmetric strategies, highlighting current limitations and future opportunities in heterocycle ...
Jimil George, Kyungsoo Oh
wiley   +1 more source

Folding of a donor–acceptor polyrotaxane by using noncovalent bonding interactions [PDF]

, 2008
Mechanically interlocked compounds, such as bistable catenanes and bistable rotaxanes, have been used to bring about actuation in nanoelectromechanical systems (NEMS) and molecular electronic devices (MEDs).
A. Z. Stieg, Appella, Beebe, Berna, Binnig, Chatterjee, Collier, Collier, D. Benitez, Estroff, Fletcher, Frechet, Harth, Hawker, J. F. Stoddart, J. K. Gimzewski, J. R. Heath, Kim, Liu, Liu, Miljanic, Sheiko, Srinivasachari, Torn  e, W. R. Dichtel, W. Zhang, Wenz   +26 more
core   +3 more sources

A Tandem Chemical Vapor Deposition Platform for the Solvent‐Free Synthesis of Polypeptide Architectures

Chemistry – A European Journal, EarlyView.
A solvent‐free, two‐step chemical vapor polymerization enables efficient, substrate‐independent synthesis of surface‐attached polypeptide films. Initiator deposition via CVD is followed by NCA ring‐opening polymerization. Characterization confirms film formation and functionalization, allowing precise micropatterning and bioactive surface design for ...
Domenic Kratzer, Martina Plank, Meike Koenig, Tahereh Mohammadi Hafshejani, Joerg Lahann   +4 more
wiley   +1 more source

X=Y–ZH compounds as potential 1,3-dipoles. Part 64: Synthesis of highly substituted conformationally restricted and spiro nitropyrrolidines via Ag(I) catalysed azomethine ylide cycloadditions [PDF]

, 2008
1,3-Dipolar reactions of imines of both acyclic and cyclic α-amino esters with a range of nitroolefins using a combination of AgOAc or Ag2O with NEt3 are described.
Albert, Amornraksa, Ayerbe, Becker, Berger, Bourguignon, Bryce, Cecilia Orgaz de la Cierva, Colin Kilner, Crooks, Dondas, Díaz-Ortiz, Fejes, Fejes, Gentles, Grigg, Grigg, Grigg, Grigg, Grigg, Grigg, Grigg, Grigg, Grigg, H. Ali Dondas, Hill, Kabalka, Krapcho, Lee, Mohammed A.B. Sarker, Nielson, Norman, Nyerges, Nyerges, Nyerges, Nyerges, Nyerges, Pak, Peterli, Pinna, Poornachandran, Poornachandran, Poornachandran, Ram, Rang, Ronald Grigg, Sader-Bakaouni, Shorter, Song, Thurkauf, Vivanco, Yan   +51 more
core   +1 more source

Aliphatic Poly(Carbonate)s with Acid Responsive Release Mechanisms for Micellar Anti‐Tumor Drug Delivery

Macromolecular Rapid Communications, EarlyView.
Micellar systems based on biodegradable aliphatic polycarbonates and acid‐responsive triggers enhance drug solubility, stability, and tumor‐selective release. This review covers micelles with acid‐cleavable drug linkages and those that disassemble via acid‐sensitive functionalities.
Adrian V. Hauck, Lutz Nuhn
wiley   +1 more source

Regiospecific 1 ,3-Dipolar Cycloaddition Polymerization of Keto-Stabilized Bisalkylidenephosphoranes with Bisazides

, 1972
Department of Chemistry, Laboratory of Macromolecular and Organic Chemistry, University of Louvain, B-3030 Heverlee, Belgium Received 4 September 1972 Thennostable poly-1,2,3-triazoles (7) were prepared by the regiospecific rt:action of bisazides with. keto-stabilhed bisalkylidenephosporanes (6) in DMSO solution.
P. YKMAN, G. L' ABBE, G. SMETS
openaire   +1 more source