75029-55-9Relevant academic research and scientific papers
Synthesis of some new mono- and bis-polycyclic aromatic spiro and bis-nonspiro-β-lactams
Jarrahpour, Aliasghar,Ebrahimi, Edris
experimental part, p. 515 - 531 (2010/05/02)
Some new mono-and bis-polycyclic aromatic spiro-β-lactams and bis-non spiropolycyclic aromatic β-lactams have been synthesized from imines derived from anthracene-9-carbaldehyde, 2-naphtaldehyde and a ketene derived from 9H-xanthene-9carboxylic acid and p
Scandium(III) catalysis of transimination reactions. Independent and constitutionally coupled reversible processes
Giuseppone, Nicolas,Schmitt, Jean-Louis,Schwartz, Evan,Lehn, Jean-Marie
, p. 5528 - 5539 (2007/10/03)
Sc(OTf)3 efficiently catalyzes the self-sufficient transimination reaction between various types of C=N bonds in organic solvents, with turnover frequencies up to 3600 h-1 and rate accelerations up to 6 × 105. The mechanism of the crossover reaction in mixtures of amines and imines is studied, comparing parallel individual reactions with coupled equilibria. The intrinsic kinetic parameters for isolated reactions cannot simply be added up when several components are mixed, and the behavior of the system agrees with the presence of a unique mediator that constitutes the core of a network of competing reactions. In mixed systems, every single amine or imine competes for the same central hub, in accordance with their binding affinity for the catalyst metal ion center. More generally, the study extends the basic principles of constitutional dynamic chemistry to interconnected chemical transformations and provides a step toward dynamic systems of increasing complexity.
Cyclometallation of anthracen-9-ylmethylene-phenyl-amine by palladium(II) compounds
Albert, Joan,Bosque, Ramón,Granell, Jaume,Tavera, Raquel
, p. 54 - 58 (2007/10/03)
The cyclometallation of anthracen-9-ylmethylene-phenyl-amine with palladium(II) acetate and with the system PdCl2, NaCl and NaOAc·3H2O is studied. In both cases, the C1-H bond activation of the anthracen-9-yl group takes place, affording an entry to a new type of endocyclic six-membered cyclopalladated organic imine that contains a metallated aromatic carbon atom.
