251454-49-6Relevant articles and documents
Biferrocene-based diphosphine ligands: Synthesis and application of walphos analogues in asymmetric hydrogenations
Zirakzadeh, Afrooz,Gross, Manuela A.,Wang, Yaping,Mereiter, Kurt,Spindler, Felix,Weissensteiner, Walter
supporting information, p. 1075 - 1084 (2013/04/23)
A total of four biferrocene-based Walphos-type ligands have been synthesized, structurally characterized, and tested in the rhodium-, ruthenium- and iridium-catalyzed hydrogenation of alkenes and ketones. Negishi coupling conditions allowed the biferrocene backbone of these diphosphine ligands to be built up diastereoselectively from the two nonidentical and nonracemic ferrocene fragments (R)-1-(N,N-dimethylamino)ethylferrocene and (SFc)-2- bromoiodoferrocene. The molecular structures of (SFc)-2- bromoiodoferrocene, the coupling product, two ligands, and the two complexes ([PdCl2(L)] and [RuCl(p-cymene)(L)]PF6) were determined by X-ray diffraction. The structural features of complexes and the catalysis results obtained with the newly synthesized biferrocene-based ligands were compared with those of the corresponding Walphos ligands.
Design, synthesis, and structure-activity relationship of carbamate-tethered aryl propanoic acids as novel PPARα/γ dual agonists
Kim, Nam-Jung,Lee, Kwang-Ok,Koo, Bon-Woong,Li, Funan,Yoo, Ja-Kyung,Park, Hyun-Ju,Min, Kyung-Hoon,Lim, Joong In,Kim, Mi Kyung,Kim, Jin-Kwan,Suh, Young-Ger
, p. 3595 - 3598 (2008/02/11)
We have developed a new class of PPARα/γ dual agonists, which show excellent agonistic activity in PPARα/γ transactivation assay. In particular, (R)-9d was identified as a potent PPARα/γ dual agonist with EC50s of 0.377 μM in PPARα and 0.136 μM in PPARγ, respectively. Interestingly, the structure-activity relationship revealed that the stereochemistry of the identified PPARα/γ dual agonists significantly affects their agonistic activities in PPARα than in PPARγ.
Synthesis of PPAR agonist via asymmetric hydrogenation of a cinnamic acid derivative and stereospecific displacement of (S)-2-chloropropionic acid
Houpis, Ioannis N.,Patterson, Lawrence E.,Alt, Charles A.,Rizzo, John R.,Zhang, Tony Y.,Haurez, Michael
, p. 1947 - 1950 (2007/10/03)
(Chemical Equation Presented) The synthesis of the peroxime proliferator activated receptor (PPAR) α,γ-agonist (1) was accomplished with high enantio- and diastereoselectivity by employing an asymmetric hydrogenation strategy, of an α-alkoxy cinnamic acid