Cas 133942-75-3,Carbonic acid (E)-7-benzenesulfonyl-7-cyano-hept-2-enyl ester ethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 133942-75-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,4 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 133942-75:
(8*1)+(7*3)+(6*3)+(5*9)+(4*4)+(3*2)+(2*7)+(1*5)=133
133 % 10 = 3
So 133942-75-3 is a valid CAS Registry Number.

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133942-75-3Relevant academic research and scientific papers

Palladium-catalyzed diastereoselective cyclization of the allylic precursors. A concise synthetic route to 3-azabicyclo[3.3.0]Octane and hydroisoindole skeletons

Suh, Young-Ger,Lee, Young-Choon,Ko, Jung-Ae,Kim, Soon-Ai,Kim, Jee-Young,Jung, Jae-Kyung,Seo, Seung-Yong,Lee, Kee-Ho

, p. 3053 - 3060 (2007/10/03)

A useful variant of palladium-catalyzed 1,2-diastereoselective cyclization of the allylic precursors based on the steric nature of the anion stabilizing groups has been developed. The 1,1,2-trisubstituted cycloalkane products have also been efficiently transformed into the azabicyclic systems.

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