Arenediazonium o-benzenedisulfonimides can be used as new and efficient reagents for Heck-type arylation reactions of some common substrates containing C–C multiple bonds, namely ethyl acrylate, acrylic acid, acroleyne, styrene and cyclopentene. The reactions were carried out in an organic solvent, in the presence of Pd(OAc)2 as pre-catalyst, and gave rise to arylated products, for example, ethyl cinnamates
A new method for the efficient synthesis of hexahydro-1H-fluorene and octahydrobenzo[a]azulene derivatives through a ring-expansion strategy is reported. With an appropriate combination of thulium(III) trifluoromethanesulfonate and 13X molecular sieves, a range of unsaturated polycycliccompounds were obtained in good yields. Mechanism studies reveal that the reaction is more likely to undergo Meyer–Schuster
Reaction of diazonium salts with transition metals—III
作者:K. Kikukawa、K. Nagira、F. Wada、T. Matsuda
DOI:10.1016/s0040-4020(01)97711-7
日期:1981.1
Palladium (0) catalyzed reactions of arenediazonium salts for arylation of aliphatic and cyclic olefins and allylic alcohols, styrene and ethyl acrylate were studied. Effects of the olefinic compounds and other reaction variables on the arylation were presented. Arylpalladiumspecies was proposed as the most plausible intermediated in this reaction.
[EN] COMPOUNDS FOR THE REDUCTION OF ß-AMYLOID PRODUCTION<br/>[FR] COMPOSÉS POUR LA RÉDUCTION DE LA PRODUCTION DE ß-AMYLOÏDE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2012103297A1
公开(公告)日:2012-08-02
The present disclosure provides a series of compounds of the formula (I), which modulate β-amyloid peptide (β-ΑΡ) production and are useful in the treatment of Alzheimer's Disease and other conditions affected by β-amyloid peptide (β-ΑΡ) production.
[EN] COMPOUNDS FOR THE REDUCTION OF ß-AMYLOID PRODUCTION<br/>[FR] COMPOSÉS DESTINÉS À LA RÉDUCTION DE LA PRODUCTION DE BETA-AMYLOÏDES
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2011014535A1
公开(公告)日:2011-02-03
The present disclosure provides a series of compounds of the formula (I) which modulate β-amyloid peptide (β-AP) production and are useful in the treatment of Alzheimer's Disease and other conditions affected by β-amyloid peptide (β-AP) production.