Cas 1221256-33-2,(+/-)-2-heptyl-4-methyl-1-tosyl-1,2,5,6-tetrahydropyridine

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Check Digit Verification of cas no

The CAS Registry Mumber 1221256-33-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,2,5 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1221256-33:
(9*1)+(8*2)+(7*2)+(6*1)+(5*2)+(4*5)+(3*6)+(2*3)+(1*3)=102
102 % 10 = 2
So 1221256-33-2 is a valid CAS Registry Number.

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1221256-33-2Relevant academic research and scientific papers

A detailed investigation of the aza-prins reaction

Dobbs, Adrian P.,Guesne, Sebastien J. J.,Parker, Robert J.,Skidmore, John,Stephenson, Richard A.,Hursthouse, Mike B.

supporting information; experimental part, p. 1064 - 1080 (2010/06/13)

The development of a Lewis acid-promoted aza-Prins reaction to form piperidines and pyrrolidines is described. Indium trichloride has been found to be a highly successful and mild Lewis acid for promoting this reaction. A thorough mechanistic investigation is described, including the factors that influence the formation of the 5- or 6-membered ring product(s). The Royal Society of Chemistry.

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