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90560-52-4

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90560-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90560-52-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,5,6 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90560-52:
(7*9)+(6*0)+(5*5)+(4*6)+(3*0)+(2*5)+(1*2)=124
124 % 10 = 4
So 90560-52-4 is a valid CAS Registry Number.

90560-52-4Relevant academic research and scientific papers

Palladium-Catalyzed Ring-Forming Aminoalkenylation of Alkenes with Aldehydes Initiated by Intramolecular Aminopalladation

Hu, Yue,Xie, Yinjun,Shen, Zhiqiang,Huang, Hanmin

, p. 2473 - 2477 (2017/02/23)

A palladium-catalyzed aminopalladation reaction followed by nucleophilic addition with aldehydes and dehydration is described. This direct and operationally simple procedure provides a rapid and reliable approach to a wide range of functionalized tetrahydroisoquinolines with high selectivity. Mechanistic studies disclosed that the nucleophilic addition, performed via a highly ordered transition-state, is the turnover-limiting step in which the inherent β-hydride elimination of the key Csp3?Pd species was controlled by the confined conformation and the nucleophilicity of the Csp3?Pd bond was enhanced by the strong electron-donating effect of the nitrogen atom.

Photochemical studies on aromatic γ,δ-epoxy ketones: Efficient synthesis of benzocyclobutanones and indanones

Shao, Yutian,Yang, Chao,Gui, Weijun,Liu, Yang,Xia, Wujiong

supporting information; experimental part, p. 3560 - 3562 (2012/06/04)

Irradiation of terminal aromatic γ,δ-epoxy ketones with a 450 W UV lamp led to Norrish type II cyclization/semi-pinacol rearrangement cascade reaction which formed the benzocyclobutanones containing a full-carbon quaternary center, whereas irradiation of substituted aromatic γ,δ-epoxy ketones led to the indanones through a photochemical epoxy rearrangement and 1,5-biradicals cyclization tandem reaction.

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