3972-50-7Relevant academic research and scientific papers
Silver-promoted, palladium-catalyzed direct arylation of cyclopropanes: Facile access to spiro 3,3′-cyclopropyl oxindoles
Ladd, Carolyn L.,Sustac Roman, Daniela,Charette, André B.
supporting information, p. 1350 - 1353 (2013/05/09)
The Pd-catalyzed, Ag(I)-mediated intramolecular direct arylation of cyclopropane C-H bonds is described. Various spiro 3,3′-cyclopropyl oxindoles can be obtained in good to excellent yields from easily accessible 2-bromoanilides. The kinetic isotope effect was determined and epimerization studies were conducted, suggesting that the formation of a putative Pd-enolate is not operative and that the reaction proceeds via a C-H arylation pathway.
trans-2-Aryl-N,N-dipropylcyclopropylamines: Synthesis and interactions with 5-HT(1A) receptors
Vallgarda,Appelberg,Arvidsson,Hjorth,Svensson,Hacksell
, p. 1485 - 1493 (2007/10/03)
Twelve N,N-dipropyl-substituted derivatives of trans-2- arylcyclopropylamine have been prepared and assayed for their ability to displace [3H]-8-OH-DPAT from rat brain 5-HT(1A) receptors. The new derivatives include phenyl (7a), bromo- (7b) and fluorophenyl (7c-e), 2- methoxy-5-fluorophenyl (7h), and 2-hydroxy-5-fluorophenyl (71) as well as trifluoromethylphenyl (7f) and 2,3-dichlorophenyl (7g) analogues. In the present series of compounds, electron-withdrawing substituents in the phenyl ring appear to decrease the affinity for 5-HT(1A) receptors. In contrast, electron-rich aryl groups, such as 2- or 3-thienyl (7j and 7k, respectively), provide compounds with high affinity. The additional bulk produced by the aromatic moiety in the 2-benzothienyl derivative 7i appears to be detrimental to 5-HT(1A) receptor affinity. The racemic mixtures of the interesting 7j and 7l were resolved into the enantiomers; 7j and 7l exhibited a high enantiomeric 5-HT(1A) receptor affinity ratio (75-fold and 100-fold, respectively). The enantiomers of 7j and 7l were evaluated in vivo by use of biochemical and behavioral tests in rats. Compound (1R,2R)-7j behaved as a partial agonist whereas (1R,2S)-7l appeared as an efficacious 5-HT(1A) receptor agonist, stimulating both autoreceptors and postsynaptic receptors.
