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1229407-40-2

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1229407-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1229407-40-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,9,4,0 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1229407-40:
(9*1)+(8*2)+(7*2)+(6*9)+(5*4)+(4*0)+(3*7)+(2*4)+(1*0)=142
142 % 10 = 2
So 1229407-40-2 is a valid CAS Registry Number.

1229407-40-2Relevant academic research and scientific papers

Synthesis of trifunctional thioureas bearing 1,5-disubstituted triazole tether by Ru-catalyzed Huisgen cycloaddition

Takasu, Kiyosei,Azuma, Takumi,Takemoto, Yoshiji

scheme or table, p. 2737 - 2740 (2010/06/14)

Synthesis of trifunctional thiourea catalysts tethered with a variety of functional group is described. 1,5-Triazole tether in the catalysts was constructed by ruthenium-catalyzed Huisgen cycloaddition. We demonstrate the utility of the synthetic thioureas as an asymmetric catalyst for Michal addition of nitrostyrene with cyclohexanone.

Synthesis and properties of chiral thioureas bearing an additional function at a remote position tethered by a 1,5- disubstituted triazole

Takasu, Kiyosei,Azuma, Takumi,Enkhtaivan, Iderbat,Takemoto, Yoshiji

experimental part, p. 8327 - 8348 (2011/03/18)

The synthesis and properties of multifunctional thioureas bearing a variety of functional groups at a position remote from the thiourea moiety are described. A 1, 5- disubstituted triazole tether connected with a thiourea and another functional group was synthesized via ruthenium catalyzed Huisgen cycloaddition. We demonstrate the utility of the synthetic thioureas as asymmetric catalysts and probes for the mechanistic elucidation of the course of the Michael reaction of an α,β-unsaturated imide.

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