15855-37-5Relevant articles and documents
Selective Aromatic Hydroxylation with Dioxygen and Simple Copper Imine Complexes
Becker, Jonathan,Gupta, Puneet,Angersbach, Friedrich,Tuczek, Felix,N?ther, Christian,Holthausen, Max C.,Schindler, Siegfried
, p. 11735 - 11744 (2015/08/11)
The formation of a bis(μ-oxido)dicopper complex with the ligand 2-(diethylaminoethyl)-6-phenylpyridine (PPN) and its subsequent hydroxylation of the pendant phenyl group (studied earlier by Holland et al., Angew. Chem. Int. Ed. 1999, 38, 1139-1142) has been reinvestigated to gain a better understanding of such systems in view of the development of new synthetic applications. To this end, we prepared a simple copper imine complex system that also affords selective o-hydroxylation of aromatic aldehydes by using dioxygen as the oxidant: Applying the ligand N′-benzylidene-N,N-diethylethylenediamine (BDED), salicylaldehyde was prepared in good yields and we show that this reaction also occurs through an intermediate bis-μ-oxido copper complex. The underlying reaction mechanism for the PPN-supported complex was studied at the BLYP-D/TZVP level of density functional theory and the results for representative stationary points along reaction paths of the BDED-supported complex reveal a closely related mechanistic scenario. The results demonstrate a new facile synthetic way to introduce OH groups into aromatic aldehydes.
QUINAZOLINE DERIVATIVES AS A MULTIPLEX INHIBITOR AND METHOD FOR THE PREPARATION THEREOF
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Page/Page column 81-82, (2008/06/13)
The present invention relates to a novel quinazoline derivative and a pharmaceutically acceptable salt thereof as a multiplex inhibitor, a method for the preparation thereof, and a pharmaceutical composition and a therapeutic composition comprising same as an active ingredient. The inventive quinazoline derivative as a multiplex inhibitor can selectively and effectively inhibit diseases caused by the overactivity of a tyrosine kinase.
An efficient one-pot synthesis of 3-(aryl and alkyl)methylene-1H-isoindolin-1-ones via aryne cyclization and horner reaction of o-(and m-) halogeno-N-phosphorylmethylbenzamide derivatives
Couture, Axel,Deniau, Eric,Grandclaudon, Pierre
, p. 10313 - 10330 (2007/10/03)
A series of 3-(alkyl and aryl)methylene-2,3-dihydro-1H-isoindol-1-one derivatives was synthesized by a one-pot reaction sequence involving lithiation of 2- (or 3-)halogeno-N-phosphoryl-methylbenzamides, cyclization of the aryne intermidiate, metal migration and Horner reaction of the resulting phosphorylated aminocarbanion with selected aromatic and aliphatic aldehydes.