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251454-49-6

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251454-49-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 251454-49-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,4,5 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 251454-49:
(8*2)+(7*5)+(6*1)+(5*4)+(4*5)+(3*4)+(2*4)+(1*9)=126
126 % 10 = 6
So 251454-49-6 is a valid CAS Registry Number.

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

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